Date: Thu, 20 Mar 2008 01:58:37 +0100 From: Adam Pordzik <ap@d-dt.de> To: freebsd-geom@freebsd.org Subject: geom mirror in error-prone situations Message-ID: <47E1B6BD.3080002@d-dt.de>
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Hello, recentlty, I was faced a strange situation, where ata(4) reports irregularly interrupt storms followed by DMA_WRITE timeouts. Mar 20 01:00:30 brain kernel: interrupt storm detected on "irq14:"; throttling interrupt source Mar 20 01:00:30 brain last message repeated 4 times Mar 20 01:00:30 brain kernel: ata5: reiniting channel .. Mar 20 01:00:30 brain kernel: ata5: SATA connect time=0ms Mar 20 01:00:30 brain kernel: ata5: reset tp1 mask=01 ostat0=51 ostat1=00 Mar 20 01:00:30 brain kernel: ata5: stat0=0x50 err=0x01 lsb=0x00 msb=0x00 Mar 20 01:00:30 brain kernel: ata5: reset tp2 stat0=50 stat1=00 devices=0x1<ATA_MASTER> Mar 20 01:00:30 brain kernel: ata5: reinit done .. Mar 20 01:00:30 brain kernel: ad10: TIMEOUT - WRITE_DMA48 retrying (0 retries left) LBA=871709696 The disk was (and still is) pysically faultless. How would gmirror handle such a disk? Would that disc be removed at the first error? And would it be inserted the next boot? If so, does it first have to be rebuild? A --
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