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on 05-28-2009 09:07 AM
“Symantec has a lot of neat stuff, bare metal restore, de-dupe, encryption. Now there's nothing they can't do. Point solutions from other vendors have been chinking Symantec's armour. But by integrating all these different technologies, it's creating a very powerful enterprise package. NetBackup is one of their crown jewels. Now they're doing so much with it." - CRN
NetBackup 6.5 is a major (major) release with the main driver being the ability to delivering disk-based data protection enhancements. Now why should that interest a customer, what do they need, what are the drivers that they face? In releases prior to 6.5 customers chose between basic disk, SnapVault, NearStore and Virtual Tape Libraries. Now they have a larger choice of disk types which include: BasicDisk, AdvancedDisk, SharedDisk, PureDisk, OpenStorage, NearStore/SnapVault, and Virtual Tape Library (VTL).
Now, what on earth is that lot all about?
BasicDisk is either locally-attached disk or network-attached disk exposed as a file-system. It’s cheap, allowing customers to choose low-end disk, supporting a wide number of hardware and needs no additional license. The downside is that is takes more administration time in dynamic environments. Because BasicDisk is composed of either a single disk, volume, directory, LUN or target, it has a higher total disk capacity requirement due to inefficient utilisation. This is a result of having disk being dedicated to a single Media Server, and with BasicDisk storage units cannot be shared between Media Servers. This makes it difficult to predict the amount of free space required for backups or staging.
AdvancedDisk is a bunch of dedicated disk (Direct Attached Storage – DAS, Network Attached Storage - NAS and Storage Area Network - SAN) set up like a file system which allows NetBackup to assume that it can write to and utilise all the space in the device (or devices) in the file system. AdvancedDisk is an easy upgrade from BasicDisk and reduces the amount of administration through automatic policies that distribute work loads and intelligently manage capacity to prevent job failure. AdvancedDisk does not scale easily in larger environments because it has difficulty sharing Media Servers, although it is better than BasicDisk as it can group multiple file systems for a single Media Server in a single storage unit.
SharedDisk is SAN-attached disk which solves many of the problems associated with server sprawl. It gives organisations the ability to choose a number of hardware arrays – it does not support all tier-1 hosts in this release - no HP-UX and AIX and there is reduced support for Linux versions, with media server failover as well as provisioning (decommissioning and re-provisioning), as well as providing higher performance using direct I/O paths or data de-duplication. It is scalable by adding additional LUNs or additional Media servers.
PureDisk storage is one or more Linux Servers with direct or NAS-attached OpenStorage disk. NetBackup 6.5 has heterogeneous Media Server access through the Linux Servers via an API (Application Programming Interface) that only sends single segments of a backup. PureDisk uses space optimised storage and data de-duplication techniques that can support the consolidation of data. PureDisk is a CPU intensive single instance storage process that could reduce the workload on the Media Server. It requires additional configuration through a separate PureDisk GUI and can potentially lower the throughput if the storage is Network Attached.
OpenStorage is disk that can be shared between multiple Media Servers and is seen as random-access disk. It can include data de-duplication and off-host replication providing superior Media Server failover capabilities that include the decommissioning and re-provisioning of heterogeneous Media Server access, as well as offering customers hardware freedom of choice. It is, however, a more expensive solution due to additional vendor license and premium for appliance hardware and doesn’t have off-host duplication to tape like VTL. Although the OpenStorage Disk feature set and supported platform list is constantly evolving and delivered asynchronously to the NetBackup release schedule, not all vendors are ready for the 6.5 release.
NearStore/SnapVault will often refer to a storage system specifically geared towards secondary storage – not primary storage but much faster access than off-line storage. NearStore is a space-optimised NAS storage disk with a bunch of add-on features, an additional file system view of backup images, increased security and File System Export capabilities – but at an additional cost above the hardware.
Be warned, NetApps causes some confusion by selling the storage system and backup software (NetBackup) as “SnapVault. The inline data de-duplication capabilities causes lower throughput than BasicDisk, AdvancedDisk, or SharedDisk and NearStore can only create storage volumes that are dedicated to a single media server – it takes manual intervention to failover to a different Media Server, although heterogeneous Media Server sharing at the volume level will be possible once a NearStore is integrated with OpenStorage.
A Virtual Tape Library (VTL) is an archival backup solution that combines traditional tape backup methodology with low-cost disk technology to create an optimised backup and recovery solution. It is an intelligent disk-based library that emulates traditional tape devices. Acting like a tape library with the performance of modern disk drives, data is deposited onto disk drives just as it would onto a tape library, only faster.
But what do want to do after you’ve backed up to VTL? Backing up to a disk device that behaves like a tape device is pretty cool. But until 6.5 the problem with backing up to VTL was that once you’ve streamed from the VTL backup to real tape – driven by the VTL not NetBackup - the backup cannot be seen by the NetBackup catalog. This meant that you had to stick a NBU media server in front of the VTL and backup direct to the VTL and to tape, which is an inordinate waste of resources and bandwidth, or if you needed to restore from tape you had to run two jobs – not good. Now, however, in the 6.5 release NetBackup has overcome that problem with a VTL to tape function, giving you the ability to restore either from the VTL or direct from the archived tape.
Virtual tape backup solutions can be used as a secondary backup stage on the way to tape, or as their own standalone tape library solution. A virtual tape library generally consists of an appliance or server, and software which emulate traditional tape devices and formats. The virtual tape storage drives can be direct-attached, but are more usually SAN attached via SCSI to one or more Media Servers giving them the ability to be shared by multiple heterogeneous Media Servers. Virtual tape libraries are easy to use and enhance backup performance, single instance storage, as well as off host duplication to tape (depending on vendor, in some instances NetBackup’s catalog may not be aware of all available tape copies).
The downside is that they require additional hardware and VTL software license, there is no capacity management capabilities and they have restricted access to tape while the tape is in use which will block restores access and delay duplication until backups complete, even then only one image can be accessed at a time.
Options and agents
There are basically 3 versions of the new NetBackup product: Standard Client, Enterprise Client and the Application and Database pack.
Load Balancing and Capacity Management
NetBackup 6.5 is smarter than previous versions of the product. Backups being written to disk based storage are assessed for the size of the job and the amount of storage on a disk volume which avoids over-committing volumes already in use for other backup jobs running or due to be run. It also selects the most appropriate Media Server to use for the backup job based on the Media Server job load and other available resources which ensures appropriate load balancing across the available Media Servers. Capacity Management and Load Balancing works with all types of disk except BasicDisk (tape has “unlimited capacity” – i.e. when it’s full it’s full).
Even if the capacity of a backup job changes during the backup, NetBackup can utilise its default Spanning feature which allows disk backups that exhaust disk space on one disk volume to continue using additional disk volumes preventing backup failures in situations where the disk becomes full. There are a couple of caveats: disk staging will be attempted prior to spanning, Spanning is not supported for NearStore or PureDisk.
Storage Lifecycle Policies
Storage Lifecycle Policies create storage tiers that automatically move data through its lifecycle. These policies allow IT organisations to meet SLA commitments, ensuring data is stored in the right place, for the right time; reduce storage costs, store important data on disk, and less important data on tape; reduce risk by ensuring data is migrated to tape before deleting from disk; and reduce administrative cost by automating data management. Lifecycle policies are available with Tape, Flexible Disk Option, PureDisk Storage Unit, VTL Option and OpenStorage Disk Option. Storage Lifecycle Policies uses Advanced Staging to guarantee that all copies specified in the Lifecycle are made so if one copy in a multiple copy backup fails, it will be created by duplication. So, a backup image is kept for X days, and will never expire before all other copies have been created then retiring the image when the retention policy expires.
SAN Client
The SAN Client feature uses a Storage Area Network as a transport alternative to a LAN in order to move NetBackup Client data from the NetBackup Client to a NetBackup Media Server. This is a pretty good way of moving large amounts of data from the Client to the Media Server in a way that avoids cluttering up the LAN traffic; the result is high performance backups.
VMware Support. VMware Consolidated Backup (VCB)—This innovative NetBackup integration enables a single backup of VMware images to deliver granular file-level recovery or full image-level recovery, reducing both the time and cost of VMware data protection.
Flexible Disk Option provides a baseline for new disk-based protection capabilities. It allows users to select what type of disk they want to use and what architecture suits them best. It also allows disk to be shared share a pool of disk across NetBackup media servers for high performance and scalability.
OpenStorage Disk Option enables users to share unique integration points between partner hardware and NetBackup. NetBackup will manage 3rd party disk devices and view “disk as disk”. Many supported devices will enable data de-duplication and replication for data captured by NetBackup.
PureDisk De-duplication Option allows NetBackup customers to optimise their disk storage with data de-duplication. Send streaming backups initiated by any NetBackup client to PureDisk storage. Use any type of disk (DAS, NAS, SAN) to support the PureDisk storage system. Also allows replication of backups to another site for DR recovery.
All the other NetBackup features and benefits we know and love
What are the customer’s considerations?
Size of organisation, cost, number of clients, and hardware all come up in conversation, but size and scalability (predominately backup management issues) are the primary drivers for the cost conversation. If the environment is small enough opting for BasicDisk is good enough, giving IT organisations the opportunity to spend more on administration, manually tuning for optimum performance and utilisation. However, BasicDisk is limited. Once an organisation has two or media servers, where management becomes a little tricky – it will only take one or two failed backups caused by running out of disk space on one of the media servers with another under utilised, before the pain is felt.
If an organisation would prefer specific hardware server or appliance solutions the VTL Option, NearStore/SnapVault or OpenStorage options provide enhanced manageability. If longer retention periods are necessary it might be that a space optimised disk solution (PureDisk, NearStore or OpenStorage) is more appropriate in order to drive down disk consumption. Alternatively, with generic hardware the heterogeneous nature of either AdvancedDisk or SharedDisk (both available with Advanced Disk option) is possibly more appropriate.
Fortunately all of the disk types (with the exception of BasicDisk) offer huge advantages in terms of managing backup environment complexity. Any of the disk options provide organisations with load balancing, capacity management, disk spanning, media server failover, guaranteed duplication and enhanced staging policies.
The aim of the NetBackup 6.5 release is to offer customers the industry’s most complete portfolio of disk-based backup solutions; to offer customers complete flexibility & choice: any disk solution, any connection, optimised for either price or performance; enable centralised management of disk technologies, leveraging NetBackup for unified recovery management; and leverage disk technologies to deliver protection solutions that were previously thought impossible, including: instant recovery of critical applications to any point-in-time, data reduction in the backup environment, and tape-less data protection with off-site vaulting & DR.
"As data protection is evolving, what customers are asking for is a management layer and integration between tools rather than just handing them more new products," said Marty Ward, director of product marketing for the NetBackup group at Symantec. "That's what you're seeing come together in NetBackup." Search Storage.
NetBackup 6.5, a key component of the NetBackup Platform. Please don’t get these muddled up (I did). It delivers high performance data protection that scales to meet the protection needs of the largest UNIX, Windows, Linux and NetWare environments. Offering comprehensive protection from desktop to data centre to off-site vault, the NetBackup software suite offers a single management tool to consolidate all backup and recovery operations, while providing cutting-edge management, alerting, reporting, and troubleshooting capabilities. NetBackup helps organisations take advantage of both tape and disk storage with its advances in disk and snapshot-based protection, off-site media management, and automated disaster recover.
Did I miss anything? Oh, and it’s bigger, and better, faster, more flexible, with more policies, and more manageability and frankly 6.5 makes 6.0 make sense. Duh dah!
NetBackup 6.5 is a major (major) release with the main driver being the ability to delivering disk-based data protection enhancements. Now why should that interest a customer, what do they need, what are the drivers that they face? In releases prior to 6.5 customers chose between basic disk, SnapVault, NearStore and Virtual Tape Libraries. Now they have a larger choice of disk types which include: BasicDisk, AdvancedDisk, SharedDisk, PureDisk, OpenStorage, NearStore/SnapVault, and Virtual Tape Library (VTL).
Now, what on earth is that lot all about?
BasicDisk is either locally-attached disk or network-attached disk exposed as a file-system. It’s cheap, allowing customers to choose low-end disk, supporting a wide number of hardware and needs no additional license. The downside is that is takes more administration time in dynamic environments. Because BasicDisk is composed of either a single disk, volume, directory, LUN or target, it has a higher total disk capacity requirement due to inefficient utilisation. This is a result of having disk being dedicated to a single Media Server, and with BasicDisk storage units cannot be shared between Media Servers. This makes it difficult to predict the amount of free space required for backups or staging.
AdvancedDisk is a bunch of dedicated disk (Direct Attached Storage – DAS, Network Attached Storage - NAS and Storage Area Network - SAN) set up like a file system which allows NetBackup to assume that it can write to and utilise all the space in the device (or devices) in the file system. AdvancedDisk is an easy upgrade from BasicDisk and reduces the amount of administration through automatic policies that distribute work loads and intelligently manage capacity to prevent job failure. AdvancedDisk does not scale easily in larger environments because it has difficulty sharing Media Servers, although it is better than BasicDisk as it can group multiple file systems for a single Media Server in a single storage unit.
SharedDisk is SAN-attached disk which solves many of the problems associated with server sprawl. It gives organisations the ability to choose a number of hardware arrays – it does not support all tier-1 hosts in this release - no HP-UX and AIX and there is reduced support for Linux versions, with media server failover as well as provisioning (decommissioning and re-provisioning), as well as providing higher performance using direct I/O paths or data de-duplication. It is scalable by adding additional LUNs or additional Media servers.
PureDisk storage is one or more Linux Servers with direct or NAS-attached OpenStorage disk. NetBackup 6.5 has heterogeneous Media Server access through the Linux Servers via an API (Application Programming Interface) that only sends single segments of a backup. PureDisk uses space optimised storage and data de-duplication techniques that can support the consolidation of data. PureDisk is a CPU intensive single instance storage process that could reduce the workload on the Media Server. It requires additional configuration through a separate PureDisk GUI and can potentially lower the throughput if the storage is Network Attached.
OpenStorage is disk that can be shared between multiple Media Servers and is seen as random-access disk. It can include data de-duplication and off-host replication providing superior Media Server failover capabilities that include the decommissioning and re-provisioning of heterogeneous Media Server access, as well as offering customers hardware freedom of choice. It is, however, a more expensive solution due to additional vendor license and premium for appliance hardware and doesn’t have off-host duplication to tape like VTL. Although the OpenStorage Disk feature set and supported platform list is constantly evolving and delivered asynchronously to the NetBackup release schedule, not all vendors are ready for the 6.5 release.
NearStore/SnapVault will often refer to a storage system specifically geared towards secondary storage – not primary storage but much faster access than off-line storage. NearStore is a space-optimised NAS storage disk with a bunch of add-on features, an additional file system view of backup images, increased security and File System Export capabilities – but at an additional cost above the hardware.
Be warned, NetApps causes some confusion by selling the storage system and backup software (NetBackup) as “SnapVault. The inline data de-duplication capabilities causes lower throughput than BasicDisk, AdvancedDisk, or SharedDisk and NearStore can only create storage volumes that are dedicated to a single media server – it takes manual intervention to failover to a different Media Server, although heterogeneous Media Server sharing at the volume level will be possible once a NearStore is integrated with OpenStorage.
A Virtual Tape Library (VTL) is an archival backup solution that combines traditional tape backup methodology with low-cost disk technology to create an optimised backup and recovery solution. It is an intelligent disk-based library that emulates traditional tape devices. Acting like a tape library with the performance of modern disk drives, data is deposited onto disk drives just as it would onto a tape library, only faster.
But what do want to do after you’ve backed up to VTL? Backing up to a disk device that behaves like a tape device is pretty cool. But until 6.5 the problem with backing up to VTL was that once you’ve streamed from the VTL backup to real tape – driven by the VTL not NetBackup - the backup cannot be seen by the NetBackup catalog. This meant that you had to stick a NBU media server in front of the VTL and backup direct to the VTL and to tape, which is an inordinate waste of resources and bandwidth, or if you needed to restore from tape you had to run two jobs – not good. Now, however, in the 6.5 release NetBackup has overcome that problem with a VTL to tape function, giving you the ability to restore either from the VTL or direct from the archived tape.
Virtual tape backup solutions can be used as a secondary backup stage on the way to tape, or as their own standalone tape library solution. A virtual tape library generally consists of an appliance or server, and software which emulate traditional tape devices and formats. The virtual tape storage drives can be direct-attached, but are more usually SAN attached via SCSI to one or more Media Servers giving them the ability to be shared by multiple heterogeneous Media Servers. Virtual tape libraries are easy to use and enhance backup performance, single instance storage, as well as off host duplication to tape (depending on vendor, in some instances NetBackup’s catalog may not be aware of all available tape copies).
The downside is that they require additional hardware and VTL software license, there is no capacity management capabilities and they have restricted access to tape while the tape is in use which will block restores access and delay duplication until backups complete, even then only one image can be accessed at a time.
Options and agents
There are basically 3 versions of the new NetBackup product: Standard Client, Enterprise Client and the Application and Database pack.
- Standard Client includes Bare Metal Restore and Client Encryption at the same price
- Enterprise Client includes everything in Standard Client, as well as, the new SAN Client and VMware features, Snapshot client (aka Advanced Client), and SAN Media Server
- Application and Database Pack is an optional addition to either Standard Client or Enterprise Client and includes all application and database agents (except SAP agent)
- Media Server Load Balancing – This enables the high availability and dynamic capacity optimisation of the NetBackup Media Servers.
- Disk Capacity Management – this intelligently manages shared disk pools for better optimisation and reliability.
- Storage Lifecycle Policies - These allow the definition of protection service levels to classify different types of backup data based on its business value – Gold Silver Bronze.
- The confusing bit is that there are still 3 server variants aimed at three sizes of organisation:
- Veritas NetBackup Enterprise Server – aimed at larger enterprises and includes unlimited clients, 3 tiered architecture, with all the available agents and options
- Veritas NetBackup Server – aimed at enterprises and higher tiered SMB companies on a 2 tiered architecture with all agents except Shared Storage Option and Snapshot Client (formally advanced client)
- Veritas NetBackup Starter Pack – aimed at the SMB market is also on a 2 tiered architecture with all agents except Shared Storage Option and Snapshot Client, but also can be bundles including server, clients, tape drive, and database agent(s)
Load Balancing and Capacity Management
NetBackup 6.5 is smarter than previous versions of the product. Backups being written to disk based storage are assessed for the size of the job and the amount of storage on a disk volume which avoids over-committing volumes already in use for other backup jobs running or due to be run. It also selects the most appropriate Media Server to use for the backup job based on the Media Server job load and other available resources which ensures appropriate load balancing across the available Media Servers. Capacity Management and Load Balancing works with all types of disk except BasicDisk (tape has “unlimited capacity” – i.e. when it’s full it’s full).
Even if the capacity of a backup job changes during the backup, NetBackup can utilise its default Spanning feature which allows disk backups that exhaust disk space on one disk volume to continue using additional disk volumes preventing backup failures in situations where the disk becomes full. There are a couple of caveats: disk staging will be attempted prior to spanning, Spanning is not supported for NearStore or PureDisk.
Storage Lifecycle Policies
Storage Lifecycle Policies create storage tiers that automatically move data through its lifecycle. These policies allow IT organisations to meet SLA commitments, ensuring data is stored in the right place, for the right time; reduce storage costs, store important data on disk, and less important data on tape; reduce risk by ensuring data is migrated to tape before deleting from disk; and reduce administrative cost by automating data management. Lifecycle policies are available with Tape, Flexible Disk Option, PureDisk Storage Unit, VTL Option and OpenStorage Disk Option. Storage Lifecycle Policies uses Advanced Staging to guarantee that all copies specified in the Lifecycle are made so if one copy in a multiple copy backup fails, it will be created by duplication. So, a backup image is kept for X days, and will never expire before all other copies have been created then retiring the image when the retention policy expires.
SAN Client
The SAN Client feature uses a Storage Area Network as a transport alternative to a LAN in order to move NetBackup Client data from the NetBackup Client to a NetBackup Media Server. This is a pretty good way of moving large amounts of data from the Client to the Media Server in a way that avoids cluttering up the LAN traffic; the result is high performance backups.
VMware Support. VMware Consolidated Backup (VCB)—This innovative NetBackup integration enables a single backup of VMware images to deliver granular file-level recovery or full image-level recovery, reducing both the time and cost of VMware data protection.
Flexible Disk Option provides a baseline for new disk-based protection capabilities. It allows users to select what type of disk they want to use and what architecture suits them best. It also allows disk to be shared share a pool of disk across NetBackup media servers for high performance and scalability.
OpenStorage Disk Option enables users to share unique integration points between partner hardware and NetBackup. NetBackup will manage 3rd party disk devices and view “disk as disk”. Many supported devices will enable data de-duplication and replication for data captured by NetBackup.
PureDisk De-duplication Option allows NetBackup customers to optimise their disk storage with data de-duplication. Send streaming backups initiated by any NetBackup client to PureDisk storage. Use any type of disk (DAS, NAS, SAN) to support the PureDisk storage system. Also allows replication of backups to another site for DR recovery.
All the other NetBackup features and benefits we know and love
- Synthetic backups enable quick client restore from a single backup image. Synthetic backups are automated and consume less network bandwidth as well as decreasing the impact on the application host (and therefore the application).
- Disk staging aids faster backups and restores as there is no tape device latency (the period of time that one component in a system is spinning away waiting for another component), and non-multiplexed (multiple signals for transmission over a single line or media) backup images can be used for faster recovery.
- NetBackup takes point in time checkpoints during backups. If either a backup or a recovery job fails the Checkpoint/restart option allows a failed backup or recovery job to be resumed from its last checkpoint rather than started at the beginning. It also means backup and recovery jobs can also be suspended and resumed, if necessary.
- Multiplexed backup writes multiple data streams from one or more clients/servers to a single tape drive for optimum performance. Multiplexing usually combines several low-speed signals for transmission over a single high-speed connection.
- Inline copy enables the creation of multiple concurrent backup images for both disk-to-disk and/or disk-to-tape backups. Each copy can have unique retention attributes, run either at the same time with the main backup or automatically run as a single job after completion of the primary backup.
- Online NetBackup catalog backup significantly improves data RPOs and RTOs by providing full or incremental NetBackup catalog backups while backup and recovery jobs are running.
- Reporting
What are the customer’s considerations?
Size of organisation, cost, number of clients, and hardware all come up in conversation, but size and scalability (predominately backup management issues) are the primary drivers for the cost conversation. If the environment is small enough opting for BasicDisk is good enough, giving IT organisations the opportunity to spend more on administration, manually tuning for optimum performance and utilisation. However, BasicDisk is limited. Once an organisation has two or media servers, where management becomes a little tricky – it will only take one or two failed backups caused by running out of disk space on one of the media servers with another under utilised, before the pain is felt.
If an organisation would prefer specific hardware server or appliance solutions the VTL Option, NearStore/SnapVault or OpenStorage options provide enhanced manageability. If longer retention periods are necessary it might be that a space optimised disk solution (PureDisk, NearStore or OpenStorage) is more appropriate in order to drive down disk consumption. Alternatively, with generic hardware the heterogeneous nature of either AdvancedDisk or SharedDisk (both available with Advanced Disk option) is possibly more appropriate.
Fortunately all of the disk types (with the exception of BasicDisk) offer huge advantages in terms of managing backup environment complexity. Any of the disk options provide organisations with load balancing, capacity management, disk spanning, media server failover, guaranteed duplication and enhanced staging policies.
The aim of the NetBackup 6.5 release is to offer customers the industry’s most complete portfolio of disk-based backup solutions; to offer customers complete flexibility & choice: any disk solution, any connection, optimised for either price or performance; enable centralised management of disk technologies, leveraging NetBackup for unified recovery management; and leverage disk technologies to deliver protection solutions that were previously thought impossible, including: instant recovery of critical applications to any point-in-time, data reduction in the backup environment, and tape-less data protection with off-site vaulting & DR.
"As data protection is evolving, what customers are asking for is a management layer and integration between tools rather than just handing them more new products," said Marty Ward, director of product marketing for the NetBackup group at Symantec. "That's what you're seeing come together in NetBackup." Search Storage.
NetBackup 6.5, a key component of the NetBackup Platform. Please don’t get these muddled up (I did). It delivers high performance data protection that scales to meet the protection needs of the largest UNIX, Windows, Linux and NetWare environments. Offering comprehensive protection from desktop to data centre to off-site vault, the NetBackup software suite offers a single management tool to consolidate all backup and recovery operations, while providing cutting-edge management, alerting, reporting, and troubleshooting capabilities. NetBackup helps organisations take advantage of both tape and disk storage with its advances in disk and snapshot-based protection, off-site media management, and automated disaster recover.
Did I miss anything? Oh, and it’s bigger, and better, faster, more flexible, with more policies, and more manageability and frankly 6.5 makes 6.0 make sense. Duh dah!
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Stumpr2
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05-29-2009
12:59 PM
and timely
Karthikeyan_Sun
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05-30-2009
04:42 AM
I got to know some more about Netbackup 6.5 from this.
That's Great man
That's Great man
Sriram
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06-01-2009
04:35 AM
Really good one
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06-02-2009
06:52 AM
Short and Sweet !!!
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06-14-2009
07:52 PM
VCB solution ? you forgot ?
