Yes, it seems that both my existing volumes are ZFS:
hicksd8, I also think SW raid would not be that much slower.. Is it much simpler process in that case ?
In the meantime, I'll check if I'm able to login to ILOM..
They are undoubtedly ZFS as Solaris 11 doesn't support anything else anyway for its system disks.
Not sure about the T4-1 RAID controller performance but there is a common misconception than H/W RAID must be faster than S/W raid. Real-life tests seem to routinely demonstrate the opposite, although with your planned RAID-0, both should just be quite fast.
In any case, I would strongly recommend using ZFS for your disks, that would be at least one degree of magnitude simpler to setup and maintain than hardware raid. As DukeNuke2 already stated, a single command line can be enough:
Note that you won't have redundancy so no data self healing is possible in such a configuration.
And thanks for your quick reply.
The plan indeed is to have backup, and data redundancy on another machine.
This is supposed to just be a scratch disk (client's dataset is bigger than 100GB), that will be overwritten daily anyway.
I suppose if there is no great differences in hw/sw raid, I could choose the simpler for me to configure.
Regarding the disk configuration; there seem to be many instructions around the net that I need to use cfgadm -c, to do some initial configurations to a new disk.. is this still needed ?
And about the zpool, so "zpool create name disk1 disk2", would create a pool "name", that I could afterwards format, and create a filesystem on ?
Sorry for possibly repeating stuff, I just want to be sure the order of operation I need to perform..
will create ZFS pool and ZFS filesystem and it will mount it under /name. You will be able to create additional ZFS filesystems using
that will also be automatically mounted under /name/new_fs_name. If you would want to change mountpoint of any of those filesystems, simply use:
Regarding the disk configuration; there seem to be many instructions around the net that I need to use cfgadm -c, to do some initial configurations to a new disk.. is this still needed ?
cfgadm is for hot plugging devices. Assuming you install them while the server is powered off, if the new disks do not show up at reboot with iostat -En, just run devfsadm -v and they should.
Quote:
And about the zpool, so "zpool create name disk1 disk2", would create a pool "name", that I could afterwards format, and create a filesystem on ?
You already did that with zpool create ...Should you need to create more than one file system later, better to create a specific one for your scratchpad as bartus11 already explained.
So I inserted the disks to the machine, to next available slot in the each controller (HDD1 and HDD5).
Now, when booting, there is a complaint about "Corrupt label/wrong magic number", about both new disks, but apparently that's normal when disks have no labels..
So moving forward. I check with format, what it shows:
Seems all good here, so as per instructions (also found this: blog post), I see if I can create a zpool with the new drives (c0t5000CCA025A297C4d0 and c0t5000CCA025A329E0d0)
So, I go to the /dev/dsk to see what's going on. I check what the book disk (c0t5000CCA0259D2B78d0) looks like:
What does those letters from a-h mean in the scsi part ? They seem to correspond to those last 2 digits sX (1-7)..
So, when creating the zpool, looks like I need to assign the drive with one of those sX numbers as well.. Can I just start from 0 ?
What are they for ?
Thanks again for your help!
---------- Post updated at 11:42 AM ---------- Previous update was at 10:50 AM ----------
D'oh, of course you have to be root to do that, so just "sudo" in front of the zpool command, and everything will go as in the movies
Last edited by julumme; 09-10-2012 at 10:52 PM..
Reason: adding a link to a blog post
Hello,
I want to delete a RAID configuration an old server has.
Since i haven't the chance to work with the specific raid controller in the past can you please help me how to perform the configuraiton?
I downloaded IBM ServeRAID Support CD but i wasn't able to configure the video card so i... (0 Replies)
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)
Dear Friends,
I need to configure T5240 with Internal SAS RAID HBA(SG-XPCIESAS-R-INT-Z).. T5240 uses 8 hard disks... From the documents of RAID card I have found that I need to create a jump start server to include three packages SUNWaac, StorMan, SUNWgccruntime if Im using solaris10 5/08...
... (5 Replies)
hi to all
am new to shell scripting..itz very urgent.
when i excuting the command metastat(raid configuration info) it will display some information.
#metastat
d1:submirror
status: okey
pass:1
d2:submirror
staus:okey
d3:submirror
staus:error
if staus is okey.no problem.once i... (0 Replies)
Hey Alll
Thanks for the help u give me yesterday,i need a help again from u all guys i have RS 6000 server with AIX 4.3.3 OS and with external storage (multipack) with 12 Hard disk drive which will be connected to RS 6000 scsi controller ,i dont have any raid card. now i have to... (0 Replies)
i've scoured the net and haven't found too many items. i found one at princeton and a few things at sun's site, however, i don't find them to my level. they seem to be written for someone who is very comfortable doing what they do.
does anyone know of any good tutorial that is written similar... (1 Reply)