On Sun, 20 Apr 2008, Dmitry Morozovsky wrote: DM> SL> This is just yet another item in the long list of problems with the ata DM> SL> driver. As a workaround, try the following patch: DM> SL> DM> SL> --- ata-raid.c DM> SL> +++ ata-raid.c DM> SL> _at__at_ -146,7 +146,7 _at__at_ DM> SL> rdp->disk->d_mediasize = (off_t)rdp->total_sectors * DEV_BSIZE; DM> SL> rdp->disk->d_fwsectors = rdp->sectors; DM> SL> rdp->disk->d_fwheads = rdp->heads; DM> SL> - rdp->disk->d_maxsize = 128 * DEV_BSIZE; DM> SL> + rdp->disk->d_maxsize = 32768; DM> SL> rdp->disk->d_drv1 = rdp; DM> SL> rdp->disk->d_unit = rdp->lun; DM> SL> /* we support flushing cache if all components support it */ DM> DM> I thought about just the same quick'n'dirty fix, but you're, as usual, quickier DM> ;-) DM> DM> Here are the results: DM> DM> # bsdlabel -Bw ar0 DM> # fdisk -s ar0 DM> /dev/ar0: 9709 cyl 255 hd 63 sec DM> Part Start Size Type Flags DM> 4: 0 50000 0xa5 0x80 DM> # bsdlabel -R ar0 /dev/stdin DM> a: 256M 16 4.2BSD 0 0 DM> b: 4G * swap 0 0 DM> d: 4G * 4.2BSD 0.0 DM> e: 8G * 4.2BSD 0 0 DM> # bsdlabel ar0 DM> # /dev/ar0: DM> 8 partitions: DM> # size offset fstype [fsize bsize bps/cpg] DM> a: 524288 16 4.2BSD 0 0 0 DM> b: 8388608 524304 swap DM> c: 155985920 0 unused 0 0 # "raw" part, don't DM> edit DM> d: 8388608 8912912 4.2BSD 0 0 0 DM> e: 16777216 17301520 4.2BSD 0 0 0 DM> # newfs /dev/ar0a DM> /dev/ar0a: 256.0MB (524288 sectors) block size 16384, fragment size 2048 DM> using 4 cylinder groups of 64.02MB, 4097 blks, 8256 inodes. DM> super-block backups (for fsck -b #) at: DM> 160, 131264, 262368, 393472 DM> GEOM: Reconfigure ar0a, start 8192 length 268435456 end 268443647 DM> GEOM: Reconfigure ar0b, start 268443648 length 4294967296 end 4563410943 DM> GEOM: Reconfigure ar0c, start 0 length 79864791040 end 79864791039 DM> GEOM: Reconfigure ar0d, start 4563410944 length 4294967296 end 8858378239 DM> GEOM: Reconfigure ar0e, start 8858378240 length 8589934592 end 17448312831 DM> # DM> DM> Seems to behave well so far. Will test further. At least after simulating drive loss (atacotrol detach, atacontrol attach) I can't rebuild ar0: marck_at_moleskin:~# atacontrol status ar0 ar0: ATA RAID1 status: DEGRADED subdisks: 0 ad16 ONLINE 1 ad18 ONLINE marck_at_moleskin:~# atacontrol rebuild ar0 atacontrol: ioctl(IOCATARAIDREBUILD): Input/output error marck_at_moleskin:~# Or, should I wipe out ar label from the second disk to emulate disk replacement? Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck_at_FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck_at_rinet.ru *** ------------------------------------------------------------------------Received on Mon Apr 21 2008 - 08:07:17 UTC
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