Have you tried this on the 3ware product? They do not return scsi data as a normal drive would. As far as I can tell, without making a 3ware specific system call you can not get a unique serial number from the drives. Regards, J. Deas -----Original Message----- From: Friedrich Lobenstock [mailto:fl@fl.priv.at] Sent: Friday, June 06, 2003 4:51 PM To: Linux RAID Mailing Liste Cc: linux-scsi@vger.kernel.org Subject: Re: 3ware and scsi ids Deas, Jim wrote: > I am currently using 3wares products to create 2T raids. > To increase performance on my NAS type boxes I am > using software raids. > My problem relates to a falure of a IDE drive. > Once a drive fails the next boot of the machine remaps all scsi ids. > so /dev/sda-adi becomes /dev/sda-sdh. > In short, if /dev/sdb dies, all raids become bad as all scsi ids > shift down making my raidtab file now point at the wrong drives. > (I assume this will also be a possible problem when I use > my USB dongle to update software.) > > Is there a way to hard assign logical /dev/sd(x) in the driver > so they will always map the same ide port on the 3ware controllers? > 3ware is no help on this. They say it is the bios/system and they > have no control over this. You'd better use mdadm instead of the raidtools. The config file for mdadm looks like this: # cat /etc/mdadm.conf DEVICE /dev/hd* /dev/sd* ARRAY /dev/md0 level=raid1 num-devices=2 UUID=52094036:b2e9cf8b:4267c923:750757da So you do not have to worry about which drive gets assigned which scsi id. A /sbin/mdadm --assemble --scan will do the trick. Get it at http://www.cse.unsw.edu.au/~neilb/source/mdadm/ -- MfG / Regards Friedrich Lobenstock ____________________________________________________________________ Friedrich Lobenstock Linux Services Lobenstock URL: http://www.lsl.at/ Email: fl@fl.priv.at ____________________________________________________________________ - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
