<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7638.1"> <TITLE>multipath + raid software</TITLE> </HEAD> <BODY>  Hi all, I've a sun storedge 3120 with 4 disks. I've implemented device mapper multipath on 4 disks. I want to know if is possible to implement and raid 1 configuration with multipath because when i try i obtain this error b 20 13:03:35 itcnagiosnd1 kernel: mptscsi: ioc2: attempting task abort! (sc=ee112dc0) Feb 20 13:03:35 itcnagiosnd1 kernel: scsi2 : destination target 10, lun 0 Feb 20 13:03:35 itcnagiosnd1 kernel: command = Write (10) 00 03 f1 8c 3f 00 00 80 00 Feb 20 13:03:37 itcnagiosnd1 kernel: mptbase: Initiating ioc2 recovery Feb 20 13:03:42 itcnagiosnd1 kernel: mptscsi: ioc2: task abort: SUCCESS (sc=ee112dc0) Feb 20 13:03:42 itcnagiosnd1 kernel: SCSI error : <2 0 10 0> return code = 0x6000000 Feb 20 13:03:42 itcnagiosnd1 kernel: end_request: I/O error, dev sdc, sector 66161855 Feb 20 13:03:42 itcnagiosnd1 kernel: end_request: I/O error, dev sdc, sector 66161863 Feb 20 13:03:42 itcnagiosnd1 kernel: device-mapper: dm-multipath: Failing path 8:32. Feb 20 13:03:42 itcnagiosnd1 kernel: SCSI error : <2 0 10 0> return code = 0x6000000 Feb 20 13:03:42 itcnagiosnd1 kernel: end_request: I/O error, dev sdc, sector 66161983 Feb 20 13:03:42 itcnagiosnd1 kernel: end_request: I/O error, dev sdc, sector 66161991 Feb 20 13:03:42 itcnagiosnd1 kernel: raid1: Disk failure on dm-14, disabling device. Feb 20 13:03:42 itcnagiosnd1 kernel: Operation continuing on 1 devices if anyone have implemented multipath + mirror configuration please write me this is my chain scsi [root@itcnagiosnd1 ~]# cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 13 Lun: 00 Vendor: QUANTUM Model: SDLT320 Rev: 5E5E Type: Sequential-Access ANSI SCSI revision: 02 Host: scsi1 Channel: 00 Id: 08 Lun: 00 Vendor: SEAGATE Model: ST330000LSUN300G Rev: 045A Type: Direct-Access ANSI SCSI revision: 03 Host: scsi1 Channel: 00 Id: 09 Lun: 00 Vendor: SEAGATE Model: ST330000LSUN300G Rev: 045A Type: Direct-Access ANSI SCSI revision: 03 Host: scsi2 Channel: 00 Id: 05 Lun: 00 Vendor: SUN Model: StorEdge 3120 D Rev: 1180 Type: Processor ANSI SCSI revision: 02 Host: scsi2 Channel: 00 Id: 10 Lun: 00 Vendor: SEAGATE Model: ST330000LSUN300G Rev: 045A Type: Direct-Access ANSI SCSI revision: 03 Host: scsi2 Channel: 00 Id: 11 Lun: 00 Vendor: SEAGATE Model: ST330000LSUN300G Rev: 045A Type: Direct-Access ANSI SCSI revision: 03 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: LSILOGIC Model: Logical Volume Rev: 3000 Type: Direct-Access ANSI SCSI revision: 02 Host: scsi4 Channel: 00 Id: 00 Lun: 00 Vendor: AMI Model: Virtual CDROM Rev: 1.00 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi5 Channel: 00 Id: 00 Lun: 00 Vendor: AMI Model: Virtual Floppy Rev: 1.00 Type: Direct-Access ANSI SCSI revision: 02 and this is my multipath configuration [root@itcnagiosnd1 ~]# multipath -v3 load path identifiers cache ux_socket_connect error # # all paths in cache : # dm-0 blacklisted dm-10 blacklisted dm-11 blacklisted dm-12 blacklisted dm-13 blacklisted dm-14 blacklisted dm-15 blacklisted dm-1 blacklisted dm-2 blacklisted dm-3 blacklisted dm-4 blacklisted dm-5 blacklisted dm-6 blacklisted dm-7 blacklisted dm-8 blacklisted dm-9 blacklisted hda blacklisted md0 blacklisted ram0 blacklisted ram10 blacklisted ram11 blacklisted ram12 blacklisted ram13 blacklisted ram14 blacklisted ram15 blacklisted ram1 blacklisted ram2 blacklisted ram3 blacklisted ram4 blacklisted ram5 blacklisted ram6 blacklisted ram7 blacklisted ram8 blacklisted ram9 blacklisted path sda not found in pathvec ===== path info sda (mask 0x1f) ===== bus = 1 dev_t = 8:0 size = 585937500 vendor = SEAGATE product = ST330000LSUN300G rev = 045A h:b:t:l = 1:0:8:0 tgt_node_name = serial = 20527F8H 3KR27F8H path checker = readsector0 (internal default) state = 2 getprio = (null) (internal default) prio = 1 getuid = /sbin/scsi_id -g -u -s /block/%n (internal default) uid = SSEAGATE_ST330000LSUN30020527F8H____________3KR27F8H (callout) path sdb not found in pathvec ===== path info sdb (mask 0x1f) ===== bus = 1 dev_t = 8:16 size = 585937500 vendor = SEAGATE product = ST330000LSUN300G rev = 045A h:b:t:l = 1:0:9:0 tgt_node_name = serial = 20526Y8S 3KR26Y8S path checker = readsector0 (internal default) state = 2 getprio = (null) (internal default) prio = 1 getuid = /sbin/scsi_id -g -u -s /block/%n (internal default) uid = SSEAGATE_ST330000LSUN30020526Y8S____________3KR26Y8S (callout) path sdc not found in pathvec ===== path info sdc (mask 0x1f) ===== bus = 1 dev_t = 8:32 size = 585937500 vendor = SEAGATE product = ST330000LSUN300G rev = 045A h:b:t:l = 2:0:10:0 tgt_node_name = serial = 205263GA 3KR263GA path checker = readsector0 (internal default) state = 2 getprio = (null) (internal default) prio = 1 getuid = /sbin/scsi_id -g -u -s /block/%n (internal default) uid = SSEAGATE_ST330000LSUN300205263GA____________3KR263GA (callout) path sdd not found in pathvec ===== path info sdd (mask 0x1f) ===== bus = 1 dev_t = 8:48 size = 585937500 vendor = SEAGATE product = ST330000LSUN300G rev = 045A h:b:t:l = 2:0:11:0 tgt_node_name = serial = 20526WQK 3KR26WQK path checker = readsector0 (internal default) state = 2 getprio = (null) (internal default) prio = 1 getuid = /sbin/scsi_id -g -u -s /block/%n (internal default) uid = SSEAGATE_ST330000LSUN30020526WQK____________3KR26WQK (callout) path sde not found in pathvec ===== path info sde (mask 0x1f) ===== bus = 1 dev_t = 8:64 size = 142577664 vendor = LSILOGIC product = Logical Volume rev = 3000 h:b:t:l = 3:0:0:0 tgt_node_name = serial = path checker = readsector0 (internal default) state = 2 getprio = (null) (internal default) prio = 1 getuid = /sbin/scsi_id -g -u -s /block/%n (internal default) uid = 3600508e0000000001d1979b4e1f32803 (callout) path sdf not found in pathvec ===== path info sdf (mask 0x1f) ===== bus = 1 dev_t = 8:80 size = 0 vendor = AMI product = Virtual Floppy rev = 1.00 h:b:t:l = 5:0:0:0 tgt_node_name = sr0 blacklisted # # all paths : # SSEAGATE_ST330000LSUN30020527F8H____________3KR27F8H 1:0:8:0 sda 8:0 1 [ready SSEAGATE_ST330000LSUN30020526Y8S____________3KR26Y8S 1:0:9:0 sdb 8:16 1 [read SSEAGATE_ST330000LSUN300205263GA____________3KR263GA 2:0:10:0 sdc 8:32 1 [rea SSEAGATE_ST330000LSUN30020526WQK____________3KR26WQK 2:0:11:0 sdd 8:48 1 [rea 3600508e0000000001d1979b4e1f32803 3:0:0:0 sde 8:64 1 [ready] LSILOGIC/Logical 5:0:0:0 sdf 8:80 [faulty] AMI /Virtual Floppy /1.00 params = 0 0 1 1 round-robin 0 1 1 8:32 1000 status = 1 0 0 1 1 A 0 1 0 8:32 A 0 params = 0 0 1 1 round-robin 0 1 1 8:16 1000 status = 1 0 0 1 1 A 0 1 0 8:16 A 0 params = 0 0 1 1 round-robin 0 1 1 8:0 1000 status = 1 0 0 1 1 A 0 1 0 8:0 A 0 params = 0 0 1 1 round-robin 0 1 1 8:48 1000 status = 1 0 0 1 1 A 0 1 0 8:48 A 0 Found matching wwid [SSEAGATE_ST330000LSUN30020527F8H____________3KR27F8H] in bindings file. Setting alias to mpath0 pgpolicy = failover (internal default) selector = round-robin 0 (internal default) features = 0 (internal default) hwhandler = 0 (internal default) rr_weight = 1 (internal default) no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 0 585937500 multipath 0 0 1 1 round-robin 0 1 1 8:0 1000 set ACT_NOTHING: map unchanged Found matching wwid [SSEAGATE_ST330000LSUN30020526Y8S____________3KR26Y8S] in bindings file. Setting alias to mpath1 pgpolicy = failover (internal default) selector = round-robin 0 (internal default) features = 0 (internal default) hwhandler = 0 (internal default) rr_weight = 1 (internal default) no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 0 585937500 multipath 0 0 1 1 round-robin 0 1 1 8:16 1000 set ACT_NOTHING: map unchanged Found matching wwid [SSEAGATE_ST330000LSUN300205263GA____________3KR263GA] in bindings file. Setting alias to mpath2 pgpolicy = failover (internal default) selector = round-robin 0 (internal default) features = 0 (internal default) hwhandler = 0 (internal default) rr_weight = 1 (internal default) no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 0 585937500 multipath 0 0 1 1 round-robin 0 1 1 8:32 1000 set ACT_NOTHING: map unchanged Found matching wwid [SSEAGATE_ST330000LSUN30020526WQK____________3KR26WQK] in bindings file. Setting alias to mpath3 pgpolicy = failover (internal default) selector = round-robin 0 (internal default) features = 0 (internal default) hwhandler = 0 (internal default) rr_weight = 1 (internal default) no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 0 585937500 multipath 0 0 1 1 round-robin 0 1 1 8:48 1000 set ACT_NOTHING: map unchanged Found matching wwid [3600508e0000000001d1979b4e1f32803] in bindings file. Setting alias to mpath4 pgpolicy = failover (internal default) selector = round-robin 0 (internal default) features = 0 (internal default) hwhandler = 0 (internal default) rr_weight = 1 (internal default) no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 0 142577664 multipath 0 0 1 1 round-robin 0 1 1 8:64 1000 set ACT_CREATE: map does not exists best regards Gianni Ignatius </BODY> </HTML>