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SubjectRe: Problem with mke2fs on huge RAID-partition
Bill Davidsen <davidsen@tmr.com> :
[hdparm]
> NOTE: wrong options will hose your data! WHich is why I don't tell you
> what to use, just look at -m -c (I use 3), -d and -X34. Again, it may bite
> you, have backups.

The kernel did itself the job through the "autotune" option of ide.
/proc/ide/{hda/hdg}/settings differ only in:
@@ -11,7 +11,7 @@
failures 0 0 65535 rw
file_readahead 124 0 16384 rw
ide_scsi 0 0 1 rw
-init_speed 69 0 69 rw
+init_speed 12 0 69 rw
io_32bit 3 0 3 rw
keepsettings 0 0 1 rw
lun 0 0 7 rw
@@ -20,7 +20,7 @@
multcount 0 0 16 rw
nice1 1 0 1 rw
nowerr 0 0 1 rw
-number 0 0 3 rw
+number 2 0 3 rw
pio_mode write-only 0 255 w
slow 0 0 1 rw
unmaskirq 1 0 1 rw
It can be fast: it does during raid rebuild.
May be the machine simply dislikes me.

--
Ueimor
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