search for: sdab

...bage. Any hints for a reasonable configuration? Unfortunately the Sun 7310 is rather new, so almost nothing shows up on google... even less for RHEL/CentOS :-( regards from Berlin Jens [root at dev-db1 tmp]# multipath -ll sdaa: checker msg is "readsector0 checker reports path is down" sdab: checker msg is "readsector0 checker reports path is down" sdac: checker msg is "readsector0 checker reports path is down" sdad: checker msg is "readsector0 checker reports path is down" sdd: checker msg is "readsector0 checker reports path is down" sdh: chec...

Hi CentOS 5.4(final) 2.6.18-164el5PAE. I am trying to prevent removable USB and eSATA devices from occupying /dev/sdX devices ahead of a 3ware RAID controller. For example: at boot, if a USB drive and eSATA HDD (connected to an LSI 1068E onboard controller, reflashed in "IT" mode to handle hotplug devices) were both present, they would occupy devices /dev/sdb and /dev/sdc, ahead of

...f [ 41.050772] sd 26:0:0:0: [sdaa] Mode Sense: 00 3a 00 00 [ 41.050772] sd 26:0:0:0: [sdaa] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 41.050772] sdaa: unknown partition table [ 41.063084] sd 26:0:0:0: [sdaa] Attached SCSI disk [ 41.063160] sd 27:0:0:0: [sdab] 976773168 512-byte hardware sectors (500108 MB) [ 41.063179] sd 27:0:0:0: [sdab] Write Protect is off [ 41.063181] sd 27:0:0:0: [sdab] Mode Sense: 00 3a 00 00 [ 41.063215] sd 27:0:0:0: [sdab] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 41.063272] sd 27:0:0:...

...mmediate # no_path_retry fail # user_friendly_name yes and multipath -ll reports : . . [snip other HSV400 paths - all similar] mpath12 (3600508b40007518f0000900000520000) dm-1 HP,HSV400 [size=150G][features=0][hwhandler=0] \_ round-robin 0 [prio=1][active] \_ 0:0:5:9 sdab 65:176 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:3:9 sdn 8:208 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:4:9 sdu 65:64 [active][ready] mpath11 (3600508b40007518f0000700000370000) dm-6 HP,HSV200 [size=200G][features=1 queue_if_no_path][hwhandler=0] \_ round-ro...

We're just using Linux software RAID for the first time - RAID1, and the other day, a drive failed. We have a clone machine to play with, so it's not that critical, but.... I partitioned a replacement drive. On the clone, I marked the RAID partitions on /dev/sda failed, and remove, and pulled the drive. After several iterations, I waited a minute or two, until all messages had stopped,

...mmediate # no_path_retry fail # user_friendly_name yes and multipath -ll reports : . . [snip other HSV400 paths - all similar] mpath12 (3600508b40007518f0000900000520000) dm-1 HP,HSV400 [size=150G][features=0][hwhandler=0] \_ round-robin 0 [prio=1][active] \_ 0:0:5:9 sdab 65:176 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:3:9 sdn 8:208 [active][ready] \_ round-robin 0 [prio=1][enabled] \_ 0:0:4:9 sdu 65:64 [active][ready] mpath11 (3600508b40007518f0000700000370000) dm-6 HP,HSV200 [size=200G][features=1 queue_if_no_path][hwhandler=0] \_ round-ro...

...ename=/dev/sdl filename=/dev/sdm filename=/dev/sdn filename=/dev/sdo filename=/dev/sdp filename=/dev/sdq filename=/dev/sdr filename=/dev/sds filename=/dev/sdt filename=/dev/sdu filename=/dev/sdv filename=/dev/sdw filename=/dev/sdx filename=/dev/sdy filename=/dev/sdz filename=/dev/sdaa filename=/dev/sdab filename=/dev/sdac filename=/dev/sdad filename=/dev/sdae filename=/dev/sdaf filename=/dev/sdag Guest lsscsi output: [0:0:0:0] disk ATA QEMU HARDDISK 1.1. /dev/sda [1:0:0:0] cd/dvd QEMU QEMU DVD-ROM 1.1. /dev/sr0 [2:0:0:0] disk LIO-ORG RAMDISK-MCP 4.0 /dev...

...ename=/dev/sdl filename=/dev/sdm filename=/dev/sdn filename=/dev/sdo filename=/dev/sdp filename=/dev/sdq filename=/dev/sdr filename=/dev/sds filename=/dev/sdt filename=/dev/sdu filename=/dev/sdv filename=/dev/sdw filename=/dev/sdx filename=/dev/sdy filename=/dev/sdz filename=/dev/sdaa filename=/dev/sdab filename=/dev/sdac filename=/dev/sdad filename=/dev/sdae filename=/dev/sdaf filename=/dev/sdag Guest lsscsi output: [0:0:0:0] disk ATA QEMU HARDDISK 1.1. /dev/sda [1:0:0:0] cd/dvd QEMU QEMU DVD-ROM 1.1. /dev/sr0 [2:0:0:0] disk LIO-ORG RAMDISK-MCP 4.0 /dev...

Hi, folks, I''m attempting to run an e-mail server on Xen. The e-mail system is Novell GroupWise, and it serves about 250 users. The disk volume for the e-mail is on my SAN, and I''ve attached the FC LUN to my Xen host, then used the "phy:/dev..." method to forward the disk through to the domU. I''m running into an issue with high I/O wait on the box (~250%)