AGhanem
asked on
Conver from RAID 0 to RAID 1
i've an HP DL 360 G4 server with single HD RAID0 i need to upgrade to RAID 1 i have a new HD with the same size how can i do that and what is the precuations ??
I don't think you are being clear about what you have - a RAID-0 array has at least two drives, not one, so if you want convert it to a mirror (RAID-1), you need to first make sure your proposed RAID-1 can provide enough space. The best way to do this kind of thing is to make a backup image of the existing array, break the array, create a RAID-1 array from the drives, then restore the backup onto this new array.
I'd rather not make any assumptions and be explicit if there is a danger of losing data ;-)
Yes please take the backup of your existing hard disk drive then configure the RAID and
which raid you want to configure means hardware raid or software using the windows server means mirriroing the disk .For raid-1 ( Redundant array of inexpensive disks ) so two harddisk with same capacity and HDD are IDE or scsi so check that your MBD support the raid or you can install / configure the PCI raid controller card in your server and using operating system you have to convert that HDD to dynamic and those two hdd's are logially ONE HDD.
http://www.staff.uni-mainz.de/neuffer/scsi/what_is_raid.html
which raid you want to configure means hardware raid or software using the windows server means mirriroing the disk .For raid-1 ( Redundant array of inexpensive disks ) so two harddisk with same capacity and HDD are IDE or scsi so check that your MBD support the raid or you can install / configure the PCI raid controller card in your server and using operating system you have to convert that HDD to dynamic and those two hdd's are logially ONE HDD.
http://www.staff.uni-mainz.de/neuffer/scsi/what_is_raid.html
ASKER
sirbounty
thanks for your reply actually i have the AUC installed and i'm not just adding disk but i'm migrating from RAID 0 to RAID 1 (Mirror)
the server is a production one and i need to do that witout outage is it possiable ?
and if you please give me more details about using the AUC in this task
thanks for your reply actually i have the AUC installed and i'm not just adding disk but i'm migrating from RAID 0 to RAID 1 (Mirror)
the server is a production one and i need to do that witout outage is it possiable ?
and if you please give me more details about using the AUC in this task
What exactly do you have installed for drives now? How many? Are all of them setup as a single RAID 0?
ASKER
i have smart array controller contains
parallel SCSI array A
logiical Drive 1 74G (physically one HD)
unused space 74G (physically another HD)
that as shown in the ACU
parallel SCSI array A
logiical Drive 1 74G (physically one HD)
unused space 74G (physically another HD)
that as shown in the ACU
ASKER
and i need to convert to RAID 1+0 without losing the data
that single HD host w2k3 os and SQL server and blackberry server
the question is should i first Expand the Array to contain the two HD as on logical drive then Migrate that Logical Drive to RAD 1+0
or how can i achieve this task
hope it become clear now
thanx
that single HD host w2k3 os and SQL server and blackberry server
the question is should i first Expand the Array to contain the two HD as on logical drive then Migrate that Logical Drive to RAD 1+0
or how can i achieve this task
hope it become clear now
thanx
AGhanem,
I've not been in this exact same scenario. If you want to proceed with the expansion, please make sure that you backup your data.
Presumably, if the ACU will allow you to accomplish this, then it can be done without having to rebuild - however, I would still recommend you do it off hours and stop sharing (by stopping netlogon & server services) before proceeding to ensure that no users are active on the server while you're performing the migration...
I've not been in this exact same scenario. If you want to proceed with the expansion, please make sure that you backup your data.
Presumably, if the ACU will allow you to accomplish this, then it can be done without having to rebuild - however, I would still recommend you do it off hours and stop sharing (by stopping netlogon & server services) before proceeding to ensure that no users are active on the server while you're performing the migration...
ASKER CERTIFIED SOLUTION
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Forgot to mention, the ACU also calls 2 disks mirrored RAID 0+1 or 1+0 depending on the version which is also technically incorrect since it should call it RAID 1. If you've got the new ACU then click the blue ? at the top right and there's a section of the help file on migration, it's a bit more obvious how to do it with the old ACU as you don't have to use the stupid wizards.
ASKER
andyalder thanks alot for your help
one more thing PLZ
the HD that i need to migrate hold the OS and all my critical application is there any precaution I've already backedup the hole C: and the sysstat
Thanks
one more thing PLZ
the HD that i need to migrate hold the OS and all my critical application is there any precaution I've already backedup the hole C: and the sysstat
Thanks
If you've got a full backup and a copy of the OS and smartstart to install from then there's nothing else you're likely to need. Chances of failure are virtually zero unless a hard disk fails during the migration and since you started from an unmirrored disk there was always the chance of failure during normal opperation anyway. The migration shouldn't take too long since it's only adding a mirror and not converting to RAID5.
ASKER
Thanks alot andyalder for your great support
ASKER
Done successfully withot need to
Plan Outage
Restart
Restore
Thanks
Aghanem
Plan Outage
Restart
Restore
Thanks
Aghanem
If this is for your boot/system volume, the server will need to be rebuilt and restored.
Otherwise, you can create the RAID1 using the online ACU, if you've got it installed.
Otherwise, you'll need to use the ORCA solution (F8 on bootup) in order to delete the existing RAID and create a new RAID 1, after you've installed the other disk(s).