The way I detect whether it's scsi/sas or ide is as follows. This assumes that if the disks are scsi or sas, then they have a hardware RAID (which has already been configured). If IDE create the software RAID. As far as number of drives/multiple formats, you'll have to do some additional logic based on what it finds. Hope it helps some. %pre if [ "`cat /proc/ide/hda/media`" = "disk" ] then echo "clearpart --all --initlabel" >/tmp/part-include echo "part raid.10 --size=100 --ondisk=hda --asprimary" >>/tmp/part-include echo "part raid.11 --size=100 --ondisk=hdb --asprimary" >>/tmp/part-include echo "part raid.20 --size 5120 --ondisk=hda --asprimary" >>/tmp/part-include echo "part raid.21 --size 5120 --ondisk=hdb --asprimary" >>/tmp/part-include echo "part raid.30 --size 5120 --ondisk=hda --asprimary" >>/tmp/part-include echo "part raid.31 --size 5120 --ondisk=hdb --asprimary" >>/tmp/part-include echo "part raid.40 --size 2048 --ondisk=hda" >>/tmp/part-include echo "part raid.41 --size 2048 --ondisk=hdb" >>/tmp/part-include echo "part raid.50 --size 10240 --ondisk=hda" >>/tmp/part-include echo "part raid.51 --size 10240 --ondisk=hdb" >>/tmp/part-include echo "raid / --fstype ext3 --device=md0 --level=RAID1 raid.20 raid.21" >>/tmp/part-include echo "raid /boot --fstype ext3 --device=md1 --level=RAID1 raid.10 raid.11" >>/tmp/part-include echo "raid /home --fstype ext3 --device=md2 --level=RAID1 raid.30 raid.31" >>/tmp/part-include echo "raid swap --fstype swap --device=md4 --level=RAID1 raid.40 raid.41" >>/tmp/part-include echo "raid /var --fstype ext3 --device=md3 --level=RAID1 raid.50 raid.51" >>/tmp/part-include else echo "clearpart --all --initlabel" >/tmp/part-include echo "part /boot --size 100 --fstype ext3 --asprimary" >>/tmp/part-include echo "part swap --size 2048 --fstype swap" >>/tmp/part-include echo "part / --size 5120 --fstype ext3 --asprimary" >>/tmp/part-include echo "part /home --size 5120 --fstype ext3 --asprimary" >>/tmp/part-include echo "part /var --size 10240 --fstype ext3" >>/tmp/part-include fi -Dan On Thu, 28 Feb 2008 22:26:06 +0200, Rudi Ahlers <Rudi@xxxxxxxxxxx> wrote: > Hi > > I want to setup different software RAID levels, according to the number > & type of drives in the actual system. My problem is, I often have > systems with mixed IDE & SATA drives. > > I found the following website, > http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/sysadmin-guide/s1-kickstart2-preinstallconfig.html > which has some neat tricks on detecting the IDE drives, but the same > techniques doesn't apply for SATA drives ( I don't even know how SAS / > SCSI drives operate on Linux, since I haven't worked with them yet) > > The basis of the script is as follows: > > > for file in /proc/ide/h* > do > mymedia=`cat $file/media` > if [ $mymedia == "disk" ] ; then > hds="$hds `basename $file`" > fi > done > > set $hds > numhd=`echo $#` > > drive1=`echo $hds | cut -d' ' -f1` > drive2=`echo $hds | cut -d' ' -f2` > > It doesn't indicate which drive is first in the list, which could be a > problem is the cdrom is on HDA for example (mine is, due to the 2U case > layout and how the IDE cable runs) > > With SATA (which uses scsi emulation), the process is different. There's > no /media folder in /proc/scsi/ - only a scsi file, which lists all the > devices: > > cat /proc/scsi/scsi > Attached devices: > Host: scsi0 Channel: 00 Id: 00 Lun: 00 > Vendor: ATA Model: ST3250410AS Rev: 3.AA > Type: Direct-Access ANSI SCSI revision: 05 > Host: scsi1 Channel: 00 Id: 00 Lun: 00 > Vendor: ATA Model: ST3250410AS Rev: 3.AA > Type: Direct-Access ANSI SCSI revision: 05 > > > dmesg | grep sd > SCSI device sda: 488395055 512-byte hdwr sectors (250058 MB) > SCSI device sda: drive cache: write back > SCSI device sda: 488395055 512-byte hdwr sectors (250058 MB) > SCSI device sda: drive cache: write back > sda: sda1 sda2 > Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 > SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) > SCSI device sdb: drive cache: write back > SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) > SCSI device sdb: drive cache: write back > sdb: sdb1 sdb2 > > > > So, how does the system know that scsi0 = sata1 ? > > I'd like to find this out, cause it will make the RAID setup much easier > for mixed systems > > -- > > Kind Regards > Rudi Ahlers > CEO, SoftDux > > Web: http://www.SoftDux.com > Check out my technical blog, http://blog.softdux.com for Linux or other > technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting > stugg > > _______________________________________________ > Kickstart-list mailing list > Kickstart-list@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/kickstart-list -- _______________________________________________ Kickstart-list mailing list Kickstart-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/kickstart-list
