QUOTE: |
devices { device { vendor "EMC" //廠商名稱 product "CaXXXXX" //產品型號 path_grouping_policy group_by_prio //默認的路徑組策略 getuid_callout "/sbin/scsi_id -p 0x80 -g -u -s /block/%n" //獲得唯一設備號使用的默認程序 prio_callout "/sbin/acs_prio_alua %d" //獲取有限級數值使用的默認程序 hardware_handler "1 acs" //確認用來在路徑切換和IO錯誤時,執行特定的操作的模塊。 path_checker hp_sw //決定路徑狀態的方法 path_selector "round-robin 0" //選擇那條路徑進行下一個IO操作的方法 failback immediate //故障恢復的模式 no_path_retry queue //在disable queue之前系統嘗試使用失效路徑的次數的數值 rr_min_io 100 //在當前的用戶組中,在切換到另外一條路徑之前的IO請求的數目 } } |
QUOTE: |
multipath -ll Successful info: SAccusys_ACS92102_3a095edea90dc919f0da043d118fd8c5dm-0 Accusys,ACS92102 [features=1 queue_if_no_path][hwhandler=1 acs] \_ round-robin 0 [prio=400][active]----//表示當前的正在使用控制器 \_ 1:0:1:0 sdc 8:32 [active][ready] \_ 1:0:2:0 sdd 8:48 [active][ready] \_ 2:0:1:0 sdg 8:96 [active][ready] \_ 2:0:2:0 sdh 8:112 [active][ready] ----//c,d,g,h可以理解為路徑 \_ round-robin 0 [prio=0][enabled]-----//備份控制器 \_ 1:0:0:0 sdb 8:16 [active][ghost] \_ 1:0:3:0 sde 8:64 [active][ghost] \_ 2:0:0:0 sdf 8:80 [active][ghost] \_ 2:0:3:0 sdi 8:128 [active][ghost] // faulty info: sdc: checker msg is "hp_sw checker reports path is down" //路徑出現故障 sdd: checker msg is "hp_sw checker reports path is down" //路徑出現故障 sdh: checker msg is "hp_sw checker reports path is down" //路徑出現故障 SAccusys_ACS92102_3a095edea90dc919f0da043d118fd8c5dm-0 Accusys,ACS92102 [features=1 queue_if_no_path][hwhandler=1 acs] \_ round-robin 0 [prio=0][enabled] ---- //兩個都是enabled狀態,一控制器故障,另外一個控制器沒有failover。 \_ 1:0:1:0 sdc 8:32 [failed][faulty] \_ 1:0:2:0 sdd 8:48 [failed][faulty] \_ 2:0:1:0 sdg 8:96 [failed][faulty] \_ 2:0:2:0 sdh 8:112 [failed][faulty] \_ round-robin 0 [prio=0][enabled] ---- \_ 1:0:0:0 sdb 8:16 [active][ghost] \_ 1:0:3:0 sde 8:64 [active][ghost] \_ 2:0:0:0 sdf 8:80 [active][ghost] \_ 2:0:3:0 sdi 8:128 [active][ghost] |
QUOTE: |
multipath -ll SAccusys_ACS92102_3a095edea90dc919f0da043d118fd8c5dm-0 Accusys,ACS92102 [features=1 queue_if_no_path][hwhandler=1 acs] \_ round-robin 0 [prio=200][active] \_ 1:0:0:0 sdb 8:16 [active][ready] \_ 1:0:1:0 sdc 8:32 [active][ready] \_ 2:0:0:0 sdd 8:48 [active][ready] \_ 2:0:1:0 sde 8:64 [active][ready] |
QUOTE: |
-rwxr--r-- 1 root root 2554 Jun 30 16:26 /etc/init.d/boot.multipath -rwxr--r-- 1 root root 3700 Jun 30 16:26 /etc/init.d/multipathd drwxr-xr-x 2 root root 0 Jun 30 16:26 /etc/udev drwxr-xr-x 2 root root 0 Jun 30 16:26 /etc/udev/rules.d -rw-r--r-- 1 root root 1185 Jun 30 16:26 /etc/udev/rules.d/71-multipath.rules -rw-r--r-- 1 root root 262 Jun 30 16:26 /etc/udev/rules.d/72-multipath-compat.rules -rwxr-xr-x 1 root root 4872 Jun 30 16:26 /sbin/devmap_name -rwxr-xr-x 1 root root 22824 Jun 30 16:26 /sbin/kpartx -rwxr-xr-x 1 root root 1114 Jun 30 16:26 /sbin/kpartx_id -rwxr-xr-x 1 root root 296 Jun 30 16:26 /sbin/mpath_id -rwxr-xr-x 1 root root 8404 Jun 30 16:26 /sbin/mpath_prio_alua -rwxr-xr-x 1 root root 7852 Jun 30 16:26 /sbin/mpath_prio_balance_units -rwxr-xr-x 1 root root 4208 Jun 30 16:26 /sbin/mpath_prio_emc -rwxr-xr-x 1 root root 5492 Jun 30 16:26 /sbin/mpath_prio_hds_modular -rwxr-xr-x 1 root root 5984 Jun 30 16:26 /sbin/mpath_prio_netapp -rwxr-xr-x 1 root root 3284 Jun 30 16:26 /sbin/mpath_prio_random -rwxr-xr-x 1 root root 4184 Jun 30 16:26 /sbin/mpath_prio_tpc -rwxr-xr-x 1 root root 121888 Jun 30 16:26 /sbin/multipath -rwxr-xr-x 1 root root 146996 Jun 30 16:26 /sbin/multipathd drwxr-xr-x 2 root root 0 Jun 30 16:26 /usr/share/doc/packages/multipath-tools -rw-r--r-- 1 root root 49 Nov 11 2005 /usr/share/doc/packages/multipath-tools/AUTHOR -rw-r--r-- 1 root root 25284 Nov 11 2005 /usr/share/doc/packages/multipath-tools/COPYING -rw-r--r-- 1 root root 195 Jun 30 16:25 /usr/share/doc/packages/multipath-tools/ChangeLog -rw-r--r-- 1 root root 15 Jun 30 16:25 /usr/share/doc/packages/multipath-tools/README -rw-r--r-- 1 root root 9238 Jun 30 16:25 /usr/share/doc/packages/multipath-tools/multipath.conf.annotated -rw-r--r-- 1 root root 1499 Jun 30 16:25 /usr/share/doc/packages/multipath-tools/multipath.conf.synthetic -rw-r--r-- 1 root root 424 Jun 30 16:26 /usr/share/man/man8/devmap_name.8.gz -rw-r--r-- 1 root root 544 Jun 30 16:26 /usr/share/man/man8/kpartx.8.gz -rw-r--r-- 1 root root 2048 Jun 30 16:26 /usr/share/man/man8/mpath_prio_alua.8.gz -rw-r--r-- 1 root root 979 Jun 30 16:26 /usr/share/man/man8/multipath.8.gz -rw-r--r-- 1 root root 489 Jun 30 16:26 /usr/share/man/man8/multipathd.8.gz drwx------ 2 root root 0 Jun 30 16:26 /var/cache/multipath |
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