Hi all, I'm going to migrate a VXVM/VXFS (vers 5.1SP1RP4) volume/file system Solaris Sparc platform to VXVM/VXFS 6.03 Linux 6.5 platform, the file system size is 2TB space, real 1TB.... how much space is required for utility fscdsconv during conv...
We have a Netbackup master server cluster, the catalog/DB is sitting on a vxfs volume. There is a case open currently with Veritas and they have found massive delays (40 seconds!) at backup peak time on the Sybase database and have recommended we d...
Dear All, I added a LUN to a specific volume and realised that I added it to the wrong volume. To remove the LUN the following command was run : "vxdg -g dg rmdisk vsp-xx-xx" I was then prompted to run the " -k" option to remove the disk. However...
Hallo @all I'm facing poor performance with VxFS ( EMC LUNs, host-based-mirrored volume with logplex :( We compress and uncompress a 10GB file and here are the results: pri620[root]/database/sybase_backup {NSH}: time compress test_a real 1m43....
Hi all, IHAC who has upgraded their SF HA 6.1 on RHEL 5 and noticed their RUNQ increased four times (0.1 avg to 0.4 avg). AFAIK, nothing has been changed during the upgrade. I'm wondering if it's an isolated case or expected behavior?
Hi, all. We have released a set of articles about troubleshooting volume performance in Storage Foundation. Here is the link: "Troubleshooting volume performance in Veritas Storage Foundation" http://www.symantec.com/docs/TECH202712 Sinc...
Hello, we have a mirrored/raid1 volume of 1TB spanned across two arrays (80 luns from each array) and its usage is now 400G (at some point usage was 850G). We need to shrink the filesystem to 500G so that we can utilize the space for new filesystem. ...
Dear All, I would like to create a VCS cluster of 2 nodes that will have the CFS mounted on both of them. Once the CFS is mounted into the cluster I want to get it shared to the system that is not part of VCS cluster. My question is it possible if no...
Hi, please send me solutions on the following topics. The vxdclid daemon core dumps on AIX hosts with Storage Foundation 4.0 MP4 This is the output: LABEL: CORE_DUMP IDENTIFIER: A924A5FC Date/Time: Tue Feb 5 06:38:24 USAST 201...
Hello, I wonder if there is a way to determine the time since the last reset ('vxstat -r') of vxstat counters for some or all VxVM objects. Or asked differently: When vxstat gives me data like [root:/]# vxstat OPERATIONS ...
Hi Am I right thinking setting the following in /etc/system which sets the QDepth and IO Timeout globally for the HBA's set sd:sd_io_time=0x3c set sd:sd_max_throttle=8 can be controlled at array level using vxdmpadm as per these tunable paramete...
Hi, I had to get ODM to work in a Solaris 10 container (aka zone) and wanted to make sure that Oracle did indeed use ODM and direct I/O to the Oracle files. I could not find documentation for the Veritas dtrace probes but after some trying and guessi...
I created a fresh VxVM 6.0 RAID5 volume on four columns. I performed some basic I/O operations and noticed that writes always end in read-modify-write cycle. I haven't been able to trigger a full stripe writes yet, regardless of the command I used...
Are there any cons to mirroring plexes for a single volume across two different arrays for redundancy? I'm familar with the process of mirroring plexes and use it often to migrate a volume from one lun to another lun but was unsure what was the longt...
We are excited to announce Storage Foundation High Availability Customer Forum 2012, a free learning event by the engineers for the engineers. Registration is open, register now to get on the priority list. The forum will take place at our Mountain V...
Hi experts, As i known, if would like to perform better performance then we must create VxVM as stripe layout to spread all IO across disks or luns but in case of NetApp storage array if luns configured under same aggregate volume then IO will a...
Hi everybody, I was looking for a solution to set limits for I/O usage on VxVM volumes, but couldn't find anything that fits my requirements. Maybe one of you can help me. I'm running a HA-Cluster on RHEL 5 with iSCSI storage managed by VxVM. The iSC...
Veritas Storage Foundation for Oracle RAC 5.1 Oracle RAC 10.2.0.5 Currently, MountOpt="mincache=direct" is not set in main.cf. My questions here are: - Would it make a difference in write performance if the above option was set (for file systems ...
Hi, With the below configuration details, i face a severe performance problem in my application. Server Model : T5240 Sun SPARC Enterprise Server RAM : 32 GB Processor :128 processor Operating System :Solaris 10 Database : Oracle 11.2.0.1...
There is evidence vxdbd daemon is consuming too much cpu and following its behaviour has many EPIPE errors on writes. See first column: $ grep " write" ./pid.12331 | awk '{print $4,$5, $7, $9, $16,$17}' | sort | uniq -c | sort -rn 45355 pid=12331 ...
