Re: IDE hdd faster than sata? How come?
Bruno Buys wrote:
How good is hdparm benchmark for sata? What am I missing here?
frank:/home/bruno# hdparm -Tt /dev/sda
/dev/sda:
Timing cached reads: 2368 MB in 2.00 seconds = 1183.00 MB/sec
Timing buffered disk reads: 170 MB in 3.01 seconds = 56.56 MB/sec
frank:/home/bruno# hdparm -Tt /dev/hda
/dev/hda:
Timing cached reads: 2352 MB in 2.00 seconds = 1176.18 MB/sec
Timing buffered disk reads: 180 MB in 3.03 seconds = 59.47 MB/sec
IDE disk is SAMSUNG SP0802N, FwRev=TK200-04. 80GB. udma5.
Sata is SAMSUNG SP0812C SATA 80GB.
The only thing I found was in samsung website "The drive comes defaulted
to udma100. To enable udma133 refer to www.samsung.com.br". So far,
www.samsung.com.br gives me nothing.
No clue.
but I have exactly the same ATA Samsung disk.
That gives:
Timing cached reads: 1348 MB in 2.01 seconds = 671.75 MB/sec
Timing buffered disk reads: 164 MB in 3.00 seconds = 54.64 MB/sec
Same udma5.
But smartctl -A -v 194,unknown /dev/hdc gives:
...
199 UDMA_CRC_Error_Count 0x003e 200 195 000 Old_age Always
- 92
...
And a few days ago when running Sarge on one of its partitions I got all
sorts of trouble:
...
kernel: Buffer I/O error on device hdb3, logical block 163858
kernel: lost page write due to I/O error on hdb3
...
kernel: EXT2-fs error (device hdb3): ext2_readdir: bad page in #83892
kernel: Remounting filesystem read-only
...
That disk is 6 months old!
So I am going to get rid of the Samsung and get something else.
H
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