Hi,
I have an IBM server with 2 identical disks -- SATA 250GB. I have installed CentOS 5.3 on both the disks.
I want to keep both the disks connected in the server, Boot from Disk-1 and run a full disk RSync every night.
The problem is, the 2nd HDD won't mount because of identical VolGroup names and related issues. Need to change the VolumeGroup of both HDDs and look at other related issues.
End result, I need to be able to boot from HDD1, mound HDD2 and rsync. In case of HDD1 failure, HDD2 should be able to work as the main disk.
I know this is similar to RAID and raid is an option, but I have my reasons for doing it this way.
Looking for someone who can help me ? Let me know.
Thx & Regards, Sandeep 98199-88384
I am curious what the reasons for such a weird scheme could be. Is dd-ing the whole disc or a partition of it an option? You won't need to mount it for dd to work.
Anshul
On Wed, Oct 28, 2009 at 12:41 PM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
Hi,
I have an IBM server with 2 identical disks -- SATA 250GB. I have installed CentOS 5.3 on both the disks.
I want to keep both the disks connected in the server, Boot from Disk-1 and run a full disk RSync every night.
The problem is, the 2nd HDD won't mount because of identical VolGroup names and related issues. Need to change the VolumeGroup of both HDDs and look at other related issues.
End result, I need to be able to boot from HDD1, mound HDD2 and rsync. In case of HDD1 failure, HDD2 should be able to work as the main disk.
I know this is similar to RAID and raid is an option, but I have my reasons for doing it this way.
Looking for someone who can help me ? Let me know.
Thx & Regards, Sandeep 98199-88384 -- http://mm.glug-bom.org/mailman/listinfo/linuxers
I already DD the disk -- as the first backup.
For Daily backups, I think RSync is a good option, **without any downtime.
Sandeep
On Wed, Oct 28, 2009 at 1:22 PM, Anshul anshul.khandelwal@gmail.com wrote:
I am curious what the reasons for such a weird scheme could be. Is dd-ing the whole disc or a partition of it an option? You won't need to mount it for dd to work.
Anshul
On Wed, Oct 28, 2009 at 12:41 PM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
Hi,
I have an IBM server with 2 identical disks -- SATA 250GB. I have installed CentOS 5.3 on both the disks.
I want to keep both the disks connected in the server, Boot from Disk-1
and
run a full disk RSync every night.
The problem is, the 2nd HDD won't mount because of identical VolGroup
names
and related issues. Need to change the VolumeGroup of both HDDs and look at other related issues.
End result, I need to be able to boot from HDD1, mound HDD2 and rsync. In case of HDD1 failure, HDD2 should be able to work as the main disk.
I know this is similar to RAID and raid is an option, but I have my
reasons
for doing it this way.
Looking for someone who can help me ? Let me know.
Thx & Regards, Sandeep 98199-88384 -- http://mm.glug-bom.org/mailman/listinfo/linuxers
-- What is necessary is never unwise. -- Anshul Khandelwal,
Home Page/openid: http://anshul.baboonlogic.com/ Blog: http://baboonlogic.com/ -- अंशुल खंडेलवाल -- http://mm.glug-bom.org/mailman/listinfo/linuxers
Hi,
Do u have options to format hdd2 ? In that case simply format hdd2. Create new partitions and then create new volume groups using lvcreate. As simple as that.
Or you can rename the volume groups and then rename the lvms within. I have done it many times and it works.
LVM rocks.
Regards,
Ameya contact@ameyapandit.com
On Wed, Oct 28, 2009 at 12:41 PM, RSCL Mumbai rscl.mumbai@gmail.com wrote:
Hi,
I have an IBM server with 2 identical disks -- SATA 250GB. I have installed CentOS 5.3 on both the disks.
I want to keep both the disks connected in the server, Boot from Disk-1 and run a full disk RSync every night.
The problem is, the 2nd HDD won't mount because of identical VolGroup names and related issues. Need to change the VolumeGroup of both HDDs and look at other related issues.
End result, I need to be able to boot from HDD1, mound HDD2 and rsync. In case of HDD1 failure, HDD2 should be able to work as the main disk.
I know this is similar to RAID and raid is an option, but I have my reasons for doing it this way.
Looking for someone who can help me ? Let me know.
Thx & Regards, Sandeep 98199-88384 -- http://mm.glug-bom.org/mailman/listinfo/linuxers
On Wed, Oct 28, 2009 at 4:40 PM, Ameya Pandit linux@ameyapandit.com wrote:
Hi,
Do u have options to format hdd2 ? In that case simply format hdd2. Create new partitions and then create new volume groups using lvcreate. As simple as that.
Or you can rename the volume groups and then rename the lvms within. I have done it many times and it works.
LVM rocks.
Regards,
Ameya contact@ameyapandit.com
I tried that. In one case I got an error "*Volume Group "VolGroup00" still has active LVs* " Not sure why this came up and how to resolve it.
I managed to rename one of the HDD. I also changed */boot/grub/menu.lst* & */etc/fstab*. While booting, I get kernel panic error.
I do not want to experiment much and I am badly pressed for time, hence I want some expert to drop-by and do this for me. I am located at Andheri (E).
Thx Sandeep
-
Ameya Pandit -
Anshul -
RSCL Mumbai