Can someone explain to me the different syntax regarding how root / mirror disks are represented. I never truely understand the namely / device tress etc.
Let me give you an example. On one my my servers, the root and mirror drives are :-
A domain on a sunfire 6800 :-
devalias vx-rootdisk /ssm@0,0/pci@1a,700000/pci@1/SUNW,isptwo@4/sd@0,0:a
devalias vx-rootmirror /ssm@0,0/pci@1a,700000/pci@1/SUNW,isptwo@4/sd@1,0:a
On another server, a v880 the root / mirror drives are :-
i.e. some have :a or :b or :c on the end of the device path. Why's this ? Is it hardware related ? when it says disk0,0 Im assuming its disk 0, slice 0 ?
How come the dfference in naming ?? This always gets me, and Ive never really truely known why this is.
pci@8,60000 = your system bus address
SUNW,qlc = the driver for QLogic card (for example, Emulex cards will look like this SUNW,emlx)...
fp@0,0 = means it's a fiber channel
ssd@w500000e010bfd1d1,0:a = WWN number is w500000e010bfd...
1,0:a = (as you already know) t1, slice 0
.....
all these things are documented by the way...you can go to each server's page in the system handbook, and check the hardware components and then go to the system board section, you should find more in-depth explanations.
so yes it depends on the hardware and the architecture of the system.
---------- Post updated at 01:23 AM ---------- Previous update was at 01:20 AM ----------
And by the way, you can do this to find out your system details:
For example:
it should show you a link to the actual hardware
It means that you're looking at the raw physical device itself...and this address is not to be used for booting. The device we use for booting is a link to the one you just printed.
Got a V490 with one existing root disk. Other disk slot was never populated.
Want to ensure we've got disk mirroring.
Currently vfstab mounts the physical disk - no mirroring set up.
Whats best way to achieve this without losing current disk? (1 Reply)
I have to do patching in single user mode in solaris 10 zfs root pool. Before that I have to detach the root mirror pool so that if patching fails then I can boot from detached root mirror pool. Please let me know how can I detach root pool
bash-3.2# zpool status
pool: rpool
state: ONLINE... (5 Replies)
hello folks,
I have a 300GB ROOTVG volume groups with one filesystem /backup having 200GB allocated space
Now, I cannot alt disk clone or mirrorvg this hdisk with another smaller disk. The disk size has to be 300GB; I tried alt disk clone and mirrorvg , it doesn't work. you cannot copy LVs as... (9 Replies)
Hi all
I wish to mirror for the root disk, but last time i do, make the server cannot boot up. :p So this time, hope you guys can assist me on it. =)
At the last code, is the step i wish to do. Please help to check and correct me if got any wrong.
root@leo # format </dev/null
Searching for... (17 Replies)
Hi all,
Root mirror is broken under veritas control. so could you please help me how to boot the system now step by step procedure. i really thankful to all.
regards
krishna (3 Replies)
Hello,
I've got 2 system disks (hdisk0 and hdisk1) in the mirror (RAID1) on AIX 5.3. Since the hdisk1 makes some troubles, we want to replace it with the new one. How can I disable this hdisk1 disk and prepare the mirror to use the new physical disk? As far as I know, I must remove disk from the... (3 Replies)
I have 2 drives on a sun solaris 8 server that is a live server. I am putting in an additional 2 drives and want to mirror the the first 2. I was thinking of using disksuite but one drive is the root drive with 1 maybe 2 free paritions. The other is only one partition (36G). I was wondering... (2 Replies)
Being somewhat extremely new to Unix, I have just had a system crash
One of my Volume Groups has crashed
However, this Volume Group is actually mirrored
How do I switch to use the mirrored copy?
Any assistance greatly appreciated
Thanks (1 Reply)