Can anyone clear this up for me please? I have two older SCSI disks, a Wren
and an Imprimis so they are good drives and should last awhile yet. I have
set up Raid 0 Linear and all seems to work as planned, except I cannot make
head nor tail of the block counts...
Each disk is configured with a single, disk-wide, partition. If I format
them separately and mount the two disks as separate entities I get a df
output showing:
1024-Blocks Used Avail
/dev/sda 580867 13 550849
/dev/sdb 169318 13 160561
If I then set up my mdtab for linear conjunction of the two disks, mdadd and
mdrun them, make a file system then mount then as /dev/md0, again all
"appears" to be well. Yet a df now shows:
/dev/md0 580867 13 550849
In other words, the same as the first disk of the union. /proc/mdstat shows
md0 : active linear sda sdb 600108 blocks 4k rounding
None of these blocks add up! md0 has the same size as sda! Can anyone
explain this to me?
Also, if I run fdisk on md0 before mfe2fs'ing it I get an error that says
The number of cylinders for this disk is set to 18955
This is larger than 1024, and may cause problems with:
a) software that runs at boot time (e.g. LILO)
b) booting and partitioning software form other OSs
It really says "form."
Any help will be much appreciated. Do I really have the linear RAID 0 set or
is something much amiss?
Thanks - Lawrence
