Messages in this thread | | | Date | Wed, 30 Jun 2004 00:43:52 -0400 | From | George Georgalis <> | Subject | Re: SATA_SIL works with 2.6.7-bk8 seagate drive, but oops |
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On Tue, Jun 29, 2004 at 10:46:45AM +0200, Sebastian Slota wrote: >Tried Kernel with bk8: > >root@t-rex root # cat /proc/mdstat >Personalities : [raid0] [raid5] [multipath] >md1 : active raid5 sdc3[2] sdb3[1] sda3[0] >261730816 blocks level 5, 128k chunk, algorithm 2 [3/3] [UUU] > >md0 : active raid0 sdc2[2] sdb2[1] sda2[0] >73256064 blocks 128k chunks > >unused devices: <none> > >root@t-rex root # hdparm -tT /dev/md0 > >/dev/md0: >Timing buffer-cache reads: 3896 MB in 2.01 seconds = 1935.71 MB/sec >Timing buffered disk reads: 274 MB in 3.02 seconds = 90.68 MB/sec >root@t-rex root # hdparm -tT /dev/md1 > >/dev/md1: >Timing buffer-cache reads: 3760 MB in 2.00 seconds = 1879.35 MB/sec >Timing buffered disk reads: 206 MB in 3.01 seconds = 68.49 MB/secc > >Copy a DVD to HD, both went OK! >copy data from an ATA HD ( hda ) broke. > >I read from ppl they're running linux on some older hardware, maybe thats >why it doesnt work... but ~25mb/s is nothing for me... >Also I hear about some patches to limit the speed to ~30MB/s.
I was able to dd ~140 GB with SATA_SIL today, on a stock bk kernel, till I ran out of disk, no errors. which was a pleasant unexpected surprise.
but when I checked "Timing buffered disk reads" it was around 25 MB/sec not the ~52 MB/sec I saw before with the oops. The odd thing was this disk was not in the blacklist so I don't know why it was running slower.
// George
-- George Georgalis, Architect and administrator, Linux services. IXOYE http://galis.org/george/ cell:646-331-2027 mailto:george@galis.org Key fingerprint = 5415 2738 61CF 6AE1 E9A7 9EF0 0186 503B 9831 1631
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