9 More Discussions You Might Find Interesting
1. Solaris
We have hardware RAID configured on our T6320 server and two LDOMs are running on this server. One of our disk got failed and replaced. After replacemnt the newly installed disk not detected by RAID controlled so Oracle suggested to upgrade the REM firmware. As this is the standalone production... (0 Replies)
Discussion started by: rock123
0 Replies
2. Solaris
Server Model: T5120 with 146G x4 disks.
OS: Solaris 10 - installed on c1t0d0.
Plan to use software raid (veritas volume mgr) on c1t2d0 disk.
After format and label the disk, still not able to detect using vxdiskadm.
Question:
Should I remove the hardware raid on c1t2d0 first?
My... (4 Replies)
Discussion started by: KhawHL
4 Replies
3. Red Hat
We have configured software based RAID5 with LVM on our RHEL5 servers. Please let us know if its good to configure software RAID on live environment servers. What can be the disadvantages of software RAID against hardware RAID (4 Replies)
Discussion started by: mitchnelson
4 Replies
4. UNIX for Dummies Questions & Answers
Hi
Can someone tell me what are the differences between software and hardware raid ?
thx for help. (2 Replies)
Discussion started by: presul
2 Replies
5. Filesystems, Disks and Memory
Hello,
My company has inherited a Centos based machine that has 7 hard drives and a software based raid system. Supposedly one of the drives has failed. I need to replace the hardrive.
How can I about telling which hard drive needs replacing? I have looked in the logs and there clearly is a... (5 Replies)
Discussion started by: mojoman
5 Replies
6. Red Hat
hi friends,
I am having issues with adding a spare device to a failed array.
I have created RAID 1 with 3 partitions using mdadm command. Later I added a spare with
mdadm --add /dev/md0 /dev/sdb6
This works fine and when I check this with mdadm --detail command it just sits there as a spare... (7 Replies)
Discussion started by: saagar
7 Replies
7. Linux
Hey,
I have worked with Linux for some time, but have not gotten into the specifics of hard drive tuning or software RAID. This is about to change. I have a Dell PowerEdge T105 at home and I am purchasing the following:
1GBx4 DDR2 ECC PC6400 RAM
Rosewill RSV-5 E-Sata 5 bay disk enclosure... (6 Replies)
Discussion started by: mark54g
6 Replies
8. HP-UX
Hi!
A couple of months ago a disk failed in our JBOD cabinett and I have finally got a new disk to replace it with. It was a RAID 0 so we have to create and configure the whole thing again. First we thought of RAID 1+0 but it seems you can't do this with LVM. If you read my last thread, you can... (0 Replies)
Discussion started by: hoff
0 Replies
9. UNIX for Advanced & Expert Users
Hi all,
I m just trying using software RAID in RHEL 4, without problem , then i wanna simulate if disk 1 is fail (thereis an bootloader), i plug off my 1st disk. My problems is the second disk cannot boot? just stuck in grub, the computer is hang. Sorry for poor concept in RAID? I use a RAID 1.... (0 Replies)
Discussion started by: blesets
0 Replies
vgrestore(1M) vgrestore(1M)
NAME
vgrestore - restore a VxVM disk group back to an LVM volume group
SYNOPSIS
/etc/vx/bin/vgrestore vg_name
DESCRIPTION
The vgrestore command restores a Logical Volume Manager (LVM) volume group that was previously converted to a VxVM disk group by the vxvm-
convert utility.
ARGUMENTS
vg_name
Specifies the name of a volume group that was converted to a VxVM disk group by the vxvmconvert utility.
EXIT CODES
vgrestore exits with one of the following values:
0 Successful completion.
>0 Failure; an error occurred.
WARNINGS
vgrestore functions only on VxVM disk groups that were converted from LVM volume groups by the vxvmconvert command.
It is a good idea to back up user data before running vgrestore, and restore it after the vgrestore completes, as vgrestore can only
restore a logical volume back to the state it was in before conversion to VxVM. If data changed on the volume while it was a VxVM volume,
the changes won't be reflected on the volume after being restored to LVM.
As part of the original conversion process, applications that once referenced the now-converted LVM volume's path names may have changed to
reference VxVM volume special device file names. Alternatively, special device file path names originally representing the now-converted
LVM volumes may have changed to symbolic links pointing to the VxVM volume path names. Be sure to undo these actions when restoring back
to LVM.
Do not use vgrestore unless you are certain that you want to restore LVM volume groups. After vgrestore this is run, the VxVM disks will
no longer exist.
EXAMPLES
To restore the LVM volume group vg03 that was converted by vxvmconvert to the VxVM disk group dg03, enter:
vgcfgrestore vg03
SEE ALSO
vxvmconvert(1M)
Veritas Volume Manager Migration Guide
VxVM 5.0.31.1 24 Mar 2008 vgrestore(1M)