Hi Arun, On Sun, 22 Mar 2009, 13:37:37 +0100, Arun Khan wrote:
Has anyone done a 0+1 SW RAID?
I am assembling an entry level server Intel s3000ah board, xeon 3220 2.4GHz, 8GB RAM and 4*160GB SATA II hdds. sda and sdb on one controller; sdc and sdd on an another controller.
I am thinking of configuring 2 disks (sda1+sdc1) in a RAID0 setup and then mirror this RAID device on the other 2 disks (sdb1+sdd1).
Has anyone done such a setup using sw raid in openSUSE?
Yes, I did, and it works great in general; I just configured the RAID0 on top of two RAID1 devices (because I _think_ it might be easier to deal with in case a disk goes havoc). As I'm a heavy multi-boot user, I tried to install a different version (e.g. openSUSE 11.1 32-bit vs 64-bit) and found out, that *none* of my md's or LV's on top of the md's were recognized :-( So, I deciced for me that this type of setup is probably too advanced at the moment; I now use the following configuration: /dev/sd{a,b,c,d}1 /mainboot (md-RAID1) # Chainloader /dev/sd{a,b,c,d}5 /boot-os1 # /boot for OS1 /dev/sd{a,b,c,d}6 /boot-os2 # /boot for OS2 /dev/sd{a,b,c,d}7 /boot-os3 # /boot for OS3 /dev/sd{a,b,c,d}8 /boot-os4 # /boot for OS4 /dev/sd{a,b,c,d}9 /boot-os5 # /boot for OS5 /dev/sd{a,b,c,d}10 /boot-os6 # /boot for OS6 /dev/sd{a,b,c,d}11 /boot-os7 # /boot for OS7 /dev/sd{a,b,c,d}12 /boot-os8 # /boot for OS8 /dev/sd{a,b,c,d}13 /boot-os9 # /boot for OS9 /dev/sd{a,b,c,d}14 /boot-os10 # /boot for OS10 /dev/sd{a,c}15 PV1 /dev/sd{b,d}15 PV2 I then keep all the OS related stuff plus _some_ space for ISOs etc in PV1, and use PV2 for e.g. /home shared by the various OSes. Works great, performance is very good due to the separation of OS and data specific traffic. HTH, cheers. l8er manfred -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org