Am Donnerstag, 2. Mai 2013, 14:17:04 schrieb Mathias Burén: > On 2 May 2013 14:14, Stefan Borggraefe <stefan@xxxxxxxxxxx> wrote: > > Am Donnerstag, 2. Mai 2013, 13:30:22 schrieb Mathias Burén: > >> I won't scold you for using RAID5 instead of RAID6 with this number of > >> if drives and especially the size of the drives. > >> > >> Could you please post the output of smartctl -a for each device? (from > >> smartmontools) > >> > >> That way we can verify which HDDs are broken, before proceeding. > >> > >> Mathias > > > > Hello Mathias, > > > > RAID6 would have been the safer option clearly, but we needed the > > extra-space and only had this number of drives available. > > > > Here the requested output: > > > > smartctl -a /dev/sdc > > smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-37-generic] (local > > build) Copyright (C) 2002-11 by Bruce Allen, > > http://smartmontools.sourceforge.net > > > > Vendor: Hitachi > > Product: HUS724040ALE640 > > Revision: MJAO > > User Capacity: 4.000.787.030.016 bytes [4,00 TB] > > Logical block size: 512 bytes > > Logical Unit id: 0x5000cca22bd08a85 > > Serial number: PK2331PAH5D0YT > > Device type: disk > > Local Time is: Thu May 2 15:09:16 2013 CEST > > Device supports SMART and is Enabled > > Temperature Warning Disabled or Not Supported > > SMART Health Status: OK > > > > [...] > > Hm are these behind some controller of sorts? What about smartctl -x ? We use an Adaptec 71605 controller. smartctl -x does not provide any more useful information, I suppose. I only post the output of one drive as an example this time. They all give a similar result. smartctl -x /dev/sdc smartctl 5.41 2011-06-09 r3365 [x86_64-linux-3.2.0-37-generic] (local build) Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net Vendor: Hitachi Product: HUS724040ALE640 Revision: MJAO User Capacity: 4.000.787.030.016 bytes [4,00 TB] Logical block size: 512 bytes Logical Unit id: 0x5000cca22bd08a85 Serial number: PK2331PAH5D0YT Device type: disk Local Time is: Thu May 2 15:20:55 2013 CEST Device supports SMART and is Enabled Temperature Warning Disabled or Not Supported SMART Health Status: OK Current Drive Temperature: <not available> Error Counter logging not supported Device does not support Self Test logging Device does not support Background scan results logging scsiPrintSasPhy Log Sense Failed [unsupported field in scsi command] What about the state of the software RAID5? It would be great if I could bring it back to a state where the filesystem on it is fully working again without having to copy the 20 TB of data to it again (copying this amount of data takes some time :( ). -- Best regards, Stefan Borggraefe -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html