Just resyncing my full partitions now hopefully ready for use now that i've
got a grasp of how its working.. i've posted before but here is the current
progress on it sync-ing
[root@backup root]# cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md0 : active raid1 hdg1[1] hde1[0]
156288256 blocks [2/2] [UU]
[====>................] resync = 24.8% (38889996/156288256)
finish=195.6min speed=10001K/sec
unused devices: <none>
the speed varies but its around 10000k/sec
This is driven off a Promise Ultra 100 ATA controller.. a p3 450mhz ~450meg
ram (a weak link possibly), and
2 x 160gig Samsung SP1614N drives with 8meg cache
just ran hdparm to check dma was on
[root@backup root]# hdparm /dev/hde
/dev/hde:
multcount = 16 (on)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 19457/255/63, sectors = 312581808, start = 0
[root@backup root]# hdparm /dev/hdg
/dev/hdg:
multcount = 16 (on)
IO_support = 0 (default 16-bit)
unmaskirq = 0 (off)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8 (on)
geometry = 19457/255/63, sectors = 312581808, start = 0
Is this speed normal.. someone told me drives can get up to 20-30meg/s ..
I'd of expected my drives to be near to that.. I get very good performance
with these drives in my other machines.. just wondering if its quite low...
if there is anything i can do to change this!? what kind of speeds have
other people had with IDE drives?
Thanks
Jim
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