shooga

Thanks for the reply on my slow preclear Joe. I am seeing the following errors: This one is repeated over and over again: Feb 26 21:46:17 Bunker kernel: ata4.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 Feb 26 21:46:17 Bunker kernel: ata4.00: BMDMA2 stat 0xd0009 Feb 26 21:46:17 Bunker kernel: ata4.00: failed command: READ DMA Feb 26 21:46:17 Bunker kernel: ata4.00: cmd c8/00:00:20:a2:ed/00:00:00:00:00/e0 tag 0 dma 131072 in Feb 26 21:46:17 Bunker kernel: res 51/40:df:3c:a2:ed/00:00:00:00:00/f0 Emask 0x9 (media error) Feb 26 21:46:17 Bunker kernel: ata4.00: status: { DRDY ERR } Feb 26 21:46:17 Bunker kernel: ata4.00: error: { UNC } Feb 26 21:46:25 Bunker kernel: ata4.00: configured for UDMA/100 Feb 26 21:46:25 Bunker kernel: ata4: EH complete This one shows up less frequently: Feb 26 21:46:39 Bunker kernel: end_request: I/O error, dev sdd, sector 15573615 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946701 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946702 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946703 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946704 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946705 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946706 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946707 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946708 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946709 Feb 26 21:46:39 Bunker kernel: Buffer I/O error on device sdd, logical block 1946710 Strangely though, it looks like later in the log those errors are showing for a different drive: complete Feb 27 16:10:51 Bunker kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x200000 action 0x0 Feb 27 16:10:51 Bunker kernel: ata2.00: BMDMA2 stat 0x6c0009 Feb 27 16:10:51 Bunker kernel: ata2: SError: { BadCRC } Feb 27 16:10:51 Bunker kernel: ata2.00: failed command: READ DMA Feb 27 16:10:51 Bunker kernel: ata2.00: cmd c8/00:00:e8:10:0a/00:00:00:00:00/e1 tag 0 dma 131072 in Feb 27 16:10:51 Bunker kernel: res 51/40:00:2b:11:0a/00:00:00:00:00/11 Emask 0x9 (media error) Feb 27 16:10:51 Bunker kernel: ata2.00: status: { DRDY ERR } Feb 27 16:10:51 Bunker kernel: ata2.00: error: { UNC } Feb 27 16:10:51 Bunker kernel: ata2.00: configured for UDMA/100 Feb 27 16:10:51 Bunker kernel: ata2: EH complete Feb 27 16:10:54 Bunker kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x200000 action 0x0 Feb 27 16:10:54 Bunker kernel: ata2.00: BMDMA2 stat 0x6c0009 Feb 27 16:10:54 Bunker kernel: ata2: SError: { BadCRC } Feb 27 16:10:54 Bunker kernel: ata2.00: failed command: READ DMA Feb 27 16:10:54 Bunker kernel: ata2.00: cmd c8/00:00:e8:10:0a/00:00:00:00:00/e1 tag 0 dma 131072 in Feb 27 16:10:54 Bunker kernel: res 51/40:00:2b:11:0a/00:00:00:00:00/11 Emask 0x9 (media error) Feb 27 16:10:54 Bunker kernel: ata2.00: status: { DRDY ERR } Feb 27 16:10:54 Bunker kernel: ata2.00: error: { UNC } Feb 27 16:10:54 Bunker kernel: ata2.00: configured for UDMA/100 Feb 27 16:10:54 Bunker kernel: ata2: EH complete Feb 27 16:10:57 Bunker kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x200000 action 0x0 Feb 27 16:10:57 Bunker kernel: ata2.00: BMDMA2 stat 0x6c0009 Feb 27 16:10:57 Bunker kernel: ata2: SError: { BadCRC } Feb 27 16:10:57 Bunker kernel: ata2.00: failed command: READ DMA Feb 27 16:10:57 Bunker kernel: ata2.00: cmd c8/00:00:e8:10:0a/00:00:00:00:00/e1 tag 0 dma 131072 in Feb 27 16:10:57 Bunker kernel: res 51/40:00:2b:11:0a/00:00:00:00:00/11 Emask 0x9 (media error) Feb 27 16:10:57 Bunker kernel: ata2.00: status: { DRDY ERR } Feb 27 16:10:57 Bunker kernel: ata2.00: error: { UNC } Feb 27 16:10:57 Bunker kernel: ata2.00: configured for UDMA/100 Feb 27 16:10:57 Bunker kernel: sd 1:0:0:0: [sdb] Unhandled sense code Feb 27 16:10:57 Bunker kernel: sd 1:0:0:0: [sdb] Result: hostbyte=0x00 driverbyte=0x08 Feb 27 16:10:57 Bunker kernel: sd 1:0:0:0: [sdb] Sense Key : 0x3 [current] [descriptor] Feb 27 16:10:57 Bunker kernel: Descriptor sense data with sense descriptors (in hex): Feb 27 16:10:57 Bunker kernel: 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00 Feb 27 16:10:57 Bunker kernel: 01 0a 11 2b Feb 27 16:10:57 Bunker kernel: sd 1:0:0:0: [sdb] ASC=0x11 ASCQ=0x4 Feb 27 16:10:57 Bunker kernel: sd 1:0:0:0: [sdb] CDB: cdb[0]=0x28: 28 00 01 0a 10 e8 00 01 00 00 Feb 27 16:10:57 Bunker kernel: end_request: I/O error, dev sdb, sector 17436971 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179621 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179622 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179623 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179624 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179625 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179626 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179627 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179628 Feb 27 16:10:57 Bunker kernel: Buffer I/O error on device sdb, logical block 2179629 Feb 27 16:10:57 Bunker kernel: ata2: EH complete Feb 27 16:11:00 Bunker kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x200000 action 0x0 Feb 27 16:11:00 Bunker kernel: ata2.00: BMDMA2 stat 0x6c0009 Feb 27 16:11:00 Bunker kernel: ata2: SError: { BadCRC } Feb 27 16:11:00 Bunker kernel: ata2.00: failed command: READ DMA Feb 27 16:11:00 Bunker kernel: ata2.00: cmd c8/00:08:28:11:0a/00:00:00:00:00/e1 tag 0 dma 4096 in Feb 27 16:11:00 Bunker kernel: res 51/40:00:2b:11:0a/00:00:00:00:00/11 Emask 0x9 (media error) Feb 27 16:11:00 Bunker kernel: ata2.00: status: { DRDY ERR } Feb 27 16:11:00 Bunker kernel: ata2.00: error: { UNC } Feb 27 16:11:00 Bunker kernel: ata2.00: configured for UDMA/100 Feb 27 16:11:00 Bunker kernel: ata2: EH complete Feb 27 16:11:03 Bunker kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x200000 action 0x0 Feb 27 16:11:03 Bunker kernel: ata2.00: BMDMA2 stat 0x6c0009 Feb 27 16:11:03 Bunker kernel: ata2: SError: { BadCRC } Feb 27 16:11:03 Bunker kernel: ata2.00: failed command: READ DMA Feb 27 16:11:03 Bunker kernel: ata2.00: cmd c8/00:08:28:11:0a/00:00:00:00:00/e1 tag 0 dma 4096 in Feb 27 16:11:03 Bunker kernel: res 51/40:00:2b:11:0a/00:00:00:00:00/11 Emask 0x9 (media error) Feb 27 16:11:03 Bunker kernel: ata2.00: status: { DRDY ERR } Feb 27 16:11:03 Bunker kernel: ata2.00: error: { UNC } Feb 27 16:11:03 Bunker kernel: ata2.00: configured for UDMA/100 Feb 27 16:11:03 Bunker kernel: ata2: EH complete Advice? Are these drives hosed?

I posted this previously, but have a feeling it was either not specific enough or got lost because the thread went to the next page. Trying one more time just in case: I have a WD15EADS that a friend gave me from his old stash. It's preclearing MUCH slower than other drives I've been preclearing and adding to my new server. After 9 hours it's only 40% through pre-reading the first of two cycles - unMenu is showing 18MB/s (now 12MB/s) but it started out at 3MB/s. Besides this one, the slowest drives I've pre-read have gone at more like 40MB/s and the first drives were liike 2-3x that even. Is this just a sign that it's a very old slow drive? Or would this mean that something is wrong? I can post the preclear results when the drive is finished, but at this rate it's going to take another 5 days to finish the 2 cycles I'm running.

I have a WD15EADS that a friend gave me from his old stash. It's preclearing MUCH slower than other drives I've been preclearing and adding to my new server. After 9 hours it's only 40% through pre-reading the first of two cycles - unMenu is showing 18MB/s but it started out at 3MB/s. Besides this one, the slowest drives I've precleared have gone at more like 40MB/s and the first drives were liike 2-3x that even. Is this just a sign that it's a very old slow drive? Or would this mean that something is wrong? I can post the preclear results when the drive is finished, but at this rate it's going to take another 5 days to finish the 2 cycles I'm running.