Only a possibility but it could be a LUN problem. maybe you should check to see (on the raid arrays) if the logical drives have been partitioned and so you should have CH X ID X LUN 0 and LUN 1 and so on. In which case you will have an sdc and sdd etc. If this is the case and the kernel can't see them (check /var/log/dmesg) then look at the raid controller and how it handles LUNS. You may also need to add a line to /etc/modules.conf something like scsi options max_mod_luns=128 (check this) and then mkinitrd for a new randisk for the kernel. John On Mon 06 Jun 2005 at 15:40, Chiu, PCM (Peter) (P.C.M.Chiu@xxxxxxxx) wrote: > > We have just recently acquired a few 24 x 400GB SATA servers with > 3Com 9500S-12 controllers. The 24 drives are configured into 2 x Raid 5 > sets > with the 9500S controllers, so each RAID set should have a capacity of > 4TB. > > Under RHEL AS 3 update 3, the RAIDs are recognised as sda and sdb > devices > with 2TB capacity each, as opposed to 4. > > If I then mount RHEL AS 4, "fdisk -l" shows sda and sdb being 4TB each, > but > mke2fs -j /dev/sda or sdb will only make a 1.8GB file system on each > device. > (1.8GB is not a typing mistake.) > > I tried to check the kernel with make menuconfig, but I cannot find a > suitable > option to specify a larger file system. > > Is this an oversight or a bug? > The feature page on RedHat clearly states the support of 8TB under RHEL > AS 4. > Did try to check RedHat knowledge database and bugzilla but cannot > locate any reference. > > By the way, the processors are dual AMD 248 with 4GB RAM, and I did > select > the x86-64 versions of the RHEL. > > Any suggestion? > > Thanks. > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
