Hello,
I'm building a server using 9 SiI3726 based port multiplier backplanes
connected to cards using SiI3132 (PCI Express) and SiI3124 (PCI). The
drives are configured into 5 RAID6 groups of 9 drives each such that
each array has 1 drive from each backplane. During the initial RAID
synchronization one of the backplanes failed and restarted (see dmesg
output below). While this did not disrupt the RAID groups this time,
the reset took about 25 seconds and could easily have caused one or
more drives to fail.
Is there anything I can do to prevent failures like this?
I'm running Debian Etchnhalf with the backport kernel 2.6.26-bpo.1-
amd6. Here's my dmesg output...
[115135.002342] ata11.00: failed to read SCR 1 (Emask=0x40)
[115135.002348] ata11.01: failed to read SCR 1 (Emask=0x40)
[115135.002350] ata11.02: failed to read SCR 1 (Emask=0x40)
[115135.002353] ata11.03: failed to read SCR 1 (Emask=0x40)
[115135.002355] ata11.04: failed to read SCR 1 (Emask=0x40)
[115135.002362] ata11.05: failed to read SCR 1 (Emask=0x40)
[115135.002366] ata11.15: exception Emask 0x4 SAct 0x0 SErr 0x0 action
0x6 frozen
[115135.002424] ata11.00: exception Emask 0x100 SAct 0x5f SErr 0x0
action 0x6 frozen
[115135.002478] ata11.00: cmd 60/28:00:3f:dc:2a/00:00:48:00:00/40 tag
0 ncq 20480 in
[115135.002478] res 40/00:00:01:4f:c2/00:00:00:00:00/00 Emask
0x4 (timeout)
[115135.002530] ata11.00: status: { DRDY }
[115135.002559] ata11.00: cmd 60/00:08:67:da:2a/01:00:48:00:00/40 tag
1 ncq 131072 in
[115135.002560] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
0x4 (timeout)
[115135.002612] ata11.00: status: { DRDY }
[115135.002638] ata11.00: cmd 60/d8:10:67:db:2a/00:00:48:00:00/40 tag
2 ncq 110592 in
[115135.002639] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
0x4 (timeout)
[115135.002691] ata11.00: status: { DRDY }
[115135.002718] ata11.00: cmd 60/00:18:67:dc:2a/01:00:48:00:00/40 tag
3 ncq 131072 in
[115135.002718] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
0x4 (timeout)
[115135.003726] ata11.00: status: { DRDY }
[115135.003748] ata11.00: cmd 60/00:20:67:dd:2a/01:00:48:00:00/40 tag
4 ncq 131072 in
[115135.003749] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
0x4 (timeout)
[115135.003795] ata11.00: status: { DRDY }
[115135.003906] ata11.00: cmd 60/80:30:67:de:2a/00:00:48:00:00/40 tag
6 ncq 65536 in
[115135.003906] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask
0x4 (timeout)
[115135.003906] ata11.00: status: { DRDY }
[115135.003906] ata11.01: exception Emask 0x100 SAct 0x0 SErr 0x0
action 0x6 frozen
[115135.003906] ata11.02: exception Emask 0x100 SAct 0x0 SErr 0x0
action 0x6 frozen
[115135.003906] ata11.03: exception Emask 0x100 SAct 0x0 SErr 0x0
action 0x6 frozen
[115135.003906] ata11.04: exception Emask 0x100 SAct 0x0 SErr 0x0
action 0x6 frozen
[115135.003906] ata11.05: exception Emask 0x100 SAct 0x0 SErr 0x0
action 0x6 frozen
[115135.003906] ata11.15: hard resetting link
[115137.199223] ata11.15: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
[115137.203173] ata11.00: hard resetting link
[115137.527173] ata11.00: SATA link up 3.0 Gbps (SStatus 123 SControl
320)
[115137.527173] ata11.01: hard resetting link
[115137.845619] ata11.01: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115137.845619] ata11.02: hard resetting link
[115138.165222] ata11.02: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115138.165226] ata11.03: hard resetting link
[115138.488248] ata11.03: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115138.488248] ata11.04: hard resetting link
[115138.808248] ata11.04: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115138.808248] ata11.05: hard resetting link
[115139.130406] ata11.05: SATA link up 1.5 Gbps (SStatus 113 SControl
320)
[115139.242365] ata11.00: failed to IDENTIFY (I/O error, err_mask=0x11)
[115139.242369] ata11.00: revalidation failed (errno=-5)
[115139.242398] ata11.15: hard resetting link
[115139.242400] ata11: controller in dubious state, performing PORT_RST
[115141.474099] ata11.15: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
[115141.474071] ata11.00: hard resetting link
[115141.795928] ata11.00: SATA link up 3.0 Gbps (SStatus 123 SControl
320)
[115141.795928] ata11.01: hard resetting link
[115142.115928] ata11.01: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115142.115932] ata11.02: hard resetting link
[115142.435928] ata11.02: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115142.435928] ata11.03: hard resetting link
[115142.763091] ata11.03: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115142.763091] ata11.04: hard resetting link
[115143.079449] ata11.04: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115143.079453] ata11.05: hard resetting link
[115143.403091] ata11.05: SATA link up 1.5 Gbps (SStatus 113 SControl
320)
[115143.514319] ata11.00: failed to IDENTIFY (I/O error, err_mask=0x11)
[115143.514322] ata11.00: revalidation failed (errno=-5)
[115143.514351] ata11.15: hard resetting link
[115143.514353] ata11: controller in dubious state, performing PORT_RST
[115145.746903] ata11.15: SATA link up 3.0 Gbps (SStatus 123 SControl 0)
[115145.748120] ata11.00: hard resetting link
[115146.070875] ata11.00: SATA link up 3.0 Gbps (SStatus 123 SControl
320)
[115146.070875] ata11.01: hard resetting link
[115146.388295] ata11.01: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115146.388295] ata11.02: hard resetting link
[115146.709654] ata11.02: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115146.709658] ata11.03: hard resetting link
[115147.032813] ata11.03: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115147.032817] ata11.04: hard resetting link
[115147.355108] ata11.04: SATA link up 3.0 Gbps (SStatus 123 SControl
300)
[115147.355112] ata11.05: hard resetting link
[115147.673730] ata11.05: SATA link up 1.5 Gbps (SStatus 113 SControl
320)
[115147.683449] ata11.00: configured for UDMA/100
[115147.694876] ata11.01: configured for UDMA/100
[115147.708279] ata11.02: configured for UDMA/100
[115148.077686] ata11.03: configured for UDMA/100
[115148.446001] ata11.04: configured for UDMA/100
[115148.446362] ata11: EH complete
[115148.446523] sd 10:0:0:0: [sdu] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446531] sd 10:0:0:0: [sdu] Write Protect is off
[115148.446533] sd 10:0:0:0: [sdu] Mode Sense: 00 3a 00 00
[115148.446546] sd 10:0:0:0: [sdu] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446560] sd 10:1:0:0: [sdv] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446568] sd 10:1:0:0: [sdv] Write Protect is off
[115148.446569] sd 10:1:0:0: [sdv] Mode Sense: 00 3a 00 00
[115148.446582] sd 10:1:0:0: [sdv] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446596] sd 10:2:0:0: [sdw] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446603] sd 10:2:0:0: [sdw] Write Protect is off
[115148.446604] sd 10:2:0:0: [sdw] Mode Sense: 00 3a 00 00
[115148.446617] sd 10:2:0:0: [sdw] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446631] sd 10:3:0:0: [sdx] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446638] sd 10:3:0:0: [sdx] Write Protect is off
[115148.446639] sd 10:3:0:0: [sdx] Mode Sense: 00 3a 00 00
[115148.446652] sd 10:3:0:0: [sdx] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446666] sd 10:4:0:0: [sdy] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446673] sd 10:4:0:0: [sdy] Write Protect is off
[115148.446674] sd 10:4:0:0: [sdy] Mode Sense: 00 3a 00 00
[115148.446687] sd 10:4:0:0: [sdy] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446700] sd 10:0:0:0: [sdu] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446707] sd 10:0:0:0: [sdu] Write Protect is off
[115148.446708] sd 10:0:0:0: [sdu] Mode Sense: 00 3a 00 00
[115148.446721] sd 10:0:0:0: [sdu] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446734] sd 10:1:0:0: [sdv] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446741] sd 10:1:0:0: [sdv] Write Protect is off
[115148.446742] sd 10:1:0:0: [sdv] Mode Sense: 00 3a 00 00
[115148.446755] sd 10:1:0:0: [sdv] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446767] sd 10:2:0:0: [sdw] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446774] sd 10:2:0:0: [sdw] Write Protect is off
[115148.446776] sd 10:2:0:0: [sdw] Mode Sense: 00 3a 00 00
[115148.446788] sd 10:2:0:0: [sdw] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446801] sd 10:3:0:0: [sdx] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446808] sd 10:3:0:0: [sdx] Write Protect is off
[115148.446809] sd 10:3:0:0: [sdx] Mode Sense: 00 3a 00 00
[115148.446822] sd 10:3:0:0: [sdx] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
[115148.446834] sd 10:4:0:0: [sdy] 1953525168 512-byte hardware
sectors (1000205 MB)
[115148.446841] sd 10:4:0:0: [sdy] Write Protect is off
[115148.446843] sd 10:4:0:0: [sdy] Mode Sense: 00 3a 00 00
[115148.446855] sd 10:4:0:0: [sdy] Write cache: enabled, read cache:
enabled, doesn't support DPO or FUA
Thanks,
Tim
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
