Re: Read i/o errs and disk replacement

2014-02-19 Thread Wolfgang Mader
On Tuesday 18 February 2014 15:02:51 Chris Murphy wrote: On Feb 18, 2014, at 2:33 PM, Wolfgang Mader wolfgang_ma...@brain-frog.de wrote: Feb 18 13:14:09 deck kernel: ata2.00: failed command: READ DMA Feb 18 13:14:09 deck kernel: ata2.00: cmd c8/00:08:60:f2:30/00:00:00:00:00/e0 tag 0 dma

Read i/o errs and disk replacement

2014-02-18 Thread Wolfgang Mader
Hi all, well, I hit the first incidence where I really have to work with my btrfs setup. To get things straight I want to double-check here to not screw things up right from the start. We are talking about a home server. There is no time or user pressure involved, and there are backups, too.

Re: Read i/o errs and disk replacement

2014-02-18 Thread Chris Murphy
On Feb 18, 2014, at 6:19 AM, Wolfgang Mader wolfgang_ma...@brain-frog.de wrote: Hi all, well, I hit the first incidence where I really have to work with my btrfs setup. To get things straight I want to double-check here to not screw things up right from the start. We are talking about a

Re: Read i/o errs and disk replacement

2014-02-18 Thread Wolfgang Mader
On Tuesday 18 February 2014 11:48:49 Chris Murphy wrote: On Feb 18, 2014, at 6:19 AM, Wolfgang Mader wolfgang_ma...@brain-frog.de wrote: Hi all, well, I hit the first incidence where I really have to work with my btrfs setup. To get things straight I want to double-check here to not

Re: Read i/o errs and disk replacement

2014-02-18 Thread Chris Murphy
On Feb 18, 2014, at 2:33 PM, Wolfgang Mader wolfgang_ma...@brain-frog.de wrote: Feb 18 13:14:09 deck kernel: ata2.00: failed command: READ DMA Feb 18 13:14:09 deck kernel: ata2.00: cmd c8/00:08:60:f2:30/00:00:00:00:00/e0 tag 0 dma 4096 in res

Re: Read i/o errs and disk replacement

2014-02-18 Thread Duncan
Chris Murphy posted on Tue, 18 Feb 2014 15:02:51 -0700 as excerpted: Also, what model drives are being used? If they are consumer drives, they almost certainly have long error recoveries over 30 minutes. FWIW, that should be 30 seconds, not 30 minutes (OUCH!). The below context sort of

Re: Read i/o errs and disk replacement

2014-02-18 Thread Duncan
Chris Murphy posted on Tue, 18 Feb 2014 11:48:49 -0700 as excerpted: This is not btrfs' fault but due to an hd error. I saw in the system logs btrfs: bdev /dev/sdb errs: wr 0, rd 2, flush 0, corrupt 0, gen 0 and a subsequent check on btrfs showed [/dev/sdb].write_io_errs 0