The behavior of CVM/VxDMP
Hi, In the Release Notes of SF5.1, there is a statement "When all of the Primary paths fail or are disabled in a non-Active/Active array in a CVM cluster, the cluster-wide failover is triggered. All hosts in the cluster start using the Secondary path to the array." What do you think "all of the Primary paths" means? It means "all of the Primary paths of the master node" or means "all of the Primary paths of all nodes"? Below is the Release Notes: http://sfdoccentral.symantec.com/sf/5.1/solaris/html/sfcfs_notes/ch01s06s02s01.htm Thanks, Yu jun
New Release: Veritas Dynamic Multi-Pathing 5.1 for Windows
Release Type: Major Release Products: Veritas Dynamic Multi-Pathing 5.1 for Windows OS Versions: •Windows Server 2003 SP2 (x86): Web Edition •Windows Server 2003 SP2 (x86, x64, IA64): Standard, Enterprise, Datacenter Editions •Windows Server 2003 R2 SP2 (x86, x64): Standard, Enterprise, Datacenter Editions •Windows Server 2008 SP1 or SP2 (x86, x64): Web, Standard, Enterprise, Datacenter Editions •Windows Server 2008 for Itanium-based Systems SP1 or SP2 (IA64) •Windows Server 2008 R2 (x64): Web, Standard, Enterprise, Datacenter Editions •Windows Server 2008 R2 for Itanium-based Systems (IA64) •Windows 7 (x86, x64): support with client components •Windows Vista SP1 or SP2 (x86, x64): Ultimate, Enterprise, Business Editions (support with client components) •Windows XP SP2 or SP3 (x86, x64): (support with client components) Release To Fulfillment Date: 10/18/2010 General Availability Date: 11/1/2010 Product Description: Veritas Dynamic Multi-Pathing for Windows (DMPW) adds additional fault tolerance to disk storage by making use of multiple paths between a server/host computer and a disk in a storage array. A path is a connection between the server/host computer and the storage array’s disks and consists of a host adapter and a SCSI bus connection to one or more SCSI disks or a fiber optic channel connected to a hub, switch, or array. Thus, multiple paths are made possible by connecting two or more host bus adapters with either SCSI or fiber optic cabling to the storage array. DMPW manages the multiple paths so that the data on each of the array’s disks is accessible to the host computer. If a path to a disk fails, Dynamic Multi-Pathing automatically transmits data to and from the disk over an alternate path. The paths on an array are set up to work in two ways—either in Active/Active mode, which provides load balancing of the data between multiple paths, or in Active/Passive mode, in which only one path is active and any remaining paths are backups. DMPW is implemented through Veritas Dynamic Multi-Pathing for Windows Device Specific Modules (DMPW DSMs). DMP DSMs are designed to support a multipath disk storage environment set up with the Microsoft Multipath I/O (MPIO) solution. DMP DSMs work effectively with Windows to provide a fault tolerant multipath disk storage environment. Known Issues: http://www.symantec.com/docs/DOC3283 See release notes starting on page 10 Product Requirements Hardware Compatibility List: http://www.symantec.com/docs/TECH138719 Supported Applications: N/A Link to Release Notes: http://www.symantec.com/docs/DOC3283 Documentation Link to Installation and Configuration Guide(s): http://www.symantec.com/business/support/index?page=content&key=59581&channel=DOCUMENTATION https://sort.symantec.com/documents References Additional Internal Information: http://www.symantec.com/business/support/index?page=content&id=TECH59755 Link to download: http://fileconnect.symantec.comSolved