12-28-2010
So the disk has shown up as a pdisk but NOT an hdisk?
You need to go into smit and the change the disk from an 'array disk' to a 'system disk'. I forget the exact menus now. Start with: smitty ssaraid, I think.
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1. AIX
Hi
Can I add disks on the fly to extend the capacity of an existing RAID 5 volume?
It's created on a 4P Advanced SSA Raid Adapter.
I need to extend a volume group, so I figured it would be easiest to extend the "physical disk" which is a RAID5 volume.
Thanks. (1 Reply)
Discussion started by: osee
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2. AIX
Helo:
We updated form AIX 4.3.3 to AIX 5.1-7 and after this we spent more than double time in read from external disks. Aparently the ssa cards microcode is at last level and all the ptf and apars are instaled.
Out backups expent more than double time, but curiously in read only, if we write in... (0 Replies)
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3. AIX
I am in the process of updating ssa adapters, drives and enclosures and wanted to know if there are any caveats that anyone would like to share. The documentation is not very clear on the ordering of the updates.
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4. AIX
I've a problem with an IBM StorageWorks - Seagate SSA drive, model ST373453LC (IBM P/N 24P3733, Type S53D073, 72,8 GB 15K - USCSI 4 - 320 SSA). I bought this disk used but working; it came from an unknown IBM SSA storage array. I've removed the SCA - SSA adapter (IBM 18P3051 - 001 - R0) and i tried... (0 Replies)
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5. AIX
Hi ,
I was migrating an AIX 5.2 system to AIX 5.3.
I have hdisk8 and hdisk2 mirrored under rootvg.
Below is the lscfg -vp output for the disks.
hdisk8 U0.1-P1-I1/Q1-W40AABDDCC800D SSA Logical Disk Drive
hdisk2 U0.1-P1-I1/Q1-W90D6151DEE00D SSA Logical Disk Drive
I... (1 Reply)
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6. AIX
Hi,
Do you have procedures to migrate ssa disks to san disk?
I don't have testing environment and I want my file system be migrated one at a time. I want it to be fast, I have only 15-20 hours to do it on every sunday 1PM till monday 7am. My largest file system is about 150G.
The AIX is... (0 Replies)
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7. AIX
Hi guys,
I'd like to share my migration/mirroring of ssa to san. No downtime for users, probably I/O performance.
here's the step:
1 After the lun had been carved on the SAN and the connections had been done on AIX fiber card
2 “lspv” and look for the new SAN hdisk? on the bottom, say... (1 Reply)
Discussion started by: itik
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8. AIX
Hi All,
What's the proper procedure for removing SSA arrays? Is the procedure like these?
- rmdev ssa disk
- physical turn off the ssa
- cfgmgr
There's no more filesystem or logical volume on it. It's just pdisk and hdisk.
Thanks in advance,
itik (3 Replies)
Discussion started by: itik
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9. AIX
When I list the PV's using lspv i see both vpath and hdisk names being listed. I got the info that each vpath is configured for 4 hdisks. Problem is I am not able to add either the hard disks in vpath to the existing non-rootvg. ? need to know the basics of vpath .. (4 Replies)
Discussion started by: nivaspIND
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10. AIX
OSLevel: 5300-10-02-0943
System Model: IBM,8203-E4A
Power 6
==
Hi!
I replaced a failed pdisk in the raid enclosure as follows,
- rmdev -l 'pdisk18' '-d'
- Replaced it.
- cfgmgr (detected)
- I can see the new drive, with the correct serial #
lscfg -v -l pdisk18
pdisk18... (2 Replies)
Discussion started by: estrar
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LEARN ABOUT HPUX
vxsplitlines
vxsplitlines(1M) vxsplitlines(1M)
NAME
vxsplitlines - show disks with conflicting configuration copies in a cluster
SYNOPSIS
vxsplitlines [-g diskgroup] [-c daname]
DESCRIPTION
If you import portions of a disk group on different systems, this can lead to conflicting configuration copies on the disks of the disk
group.
If the configuration information in a disk group is ambiguous, it may not be possible for Veritas Volume Manager to determine which config-
uration copy is most up-to-date. (This is usually termed a serial split brain (SSB) condition when it occurs in a cluster.) You cannot
import a disk group in this state unless you specify which disk's configuration copy to use.
You can use the vxsplitlines command to see which disks in a disk group have conflicting configuration copies, and use this information
together with your knowledge of the history of the disk groups' usage to determine which configuration copy is most valid.
The output from vxsplitlines displays the vxdg commands that you can run to import the disk group using the available configuration copies.
The -o selectcp option of the vxdg import command is used to select the configuration copy to use for the import.
OPTIONS
-c daname Display the SSB IDs for each disk that are stored in the configuration copy on the disk specified by its disk access name.
Note: Although the SSB IDs for some disks may match, this does not necessarily mean that those disks' configuration copies have
recorded all the configuration changes. When viewed from some other configuration copies, the SSB IDs of the same disks may not
match.
-g diskgroup
Specifies the disk group. If a disk group is not specified, the default disk group is used as determined from the rules on the
vxdg(1M) manual page.
EXAMPLES
Display the disks on each side of the split in the disk group newdg:
vxsplitlines -g newdg
Display the SSB IDs stored in the configuration copy on disk c2t4d0:
vxsplitlines -g newdg -c c2t4d0
NOTES
The vxsplitlines is primarily intended to be used with private disk groups, but it also works with shared disk groups.
The version number of the disk group must be 110 or greater.
SEE ALSO
vxdg(1M)
Veritas Volume Manager Administrator's Guide
VxVM 5.0.31.1 24 Mar 2008 vxsplitlines(1M)