首页
学习
活动
专区
工具
TVP
发布
社区首页 >专栏 >Use EMC powermt to solve PowerPath Problem

Use EMC powermt to solve PowerPath Problem

作者头像
数据和云01
发布2018-09-12 16:32:10
7740
发布2018-09-12 16:32:10
举报
文章被收录于专栏:数据库新发现数据库新发现

原文链接:

http://www.eygle.com/unix/Use.EMC.Powermt.Solve.Config.Problem.htm

在EMC系统中,如果你频繁的增减磁盘,重新分配规划磁盘组,那么主机可能无法正确检测到磁盘,这是后我们可以使用powermt来检测配置, 解决问题.

1.你可以会遇到如下问题

你已经分配磁盘给主机系统,但是在format时无法发现:

# format Searching for disks...done AVAILABLE DISK SELECTIONS: 0. c1t0d0 /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e0106d9781,0 1. c1t1d0 /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e0106ef871,0 Specify disk (enter its number): 1 selecting c1t1d0 [disk formatted] Warning: Current Disk has mounted partitions. FORMAT MENU: disk - select a disk type - select (define) a disk type partition - select (define) a partition table current - describe the current disk format - format and analyze the disk repair - repair a defective sector label - write label to the disk analyze - surface analysis defect - defect list management backup - search for backup labels verify - read and display labels save - save new disk/partition definitions inquiry - show vendor, product and revision volname - set 8-character volume name ! - execute , then return quit format> q

2.此时可以使用powermt来检测PowerPath连接状态

Powermt means:PowerPath 4.x Management Utility

# powermt display dev=all Pseudo name=emcpower4a CLARiiON ID=CK200041200044 Logical device ID=6006016028A610000AF03A428708D911 state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP B, current=Unknown ============================================================================== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ============================================================================== 2304 pci@8/fibre-channel@4 c2t0d3s0 SP B0 active dead 0 0 2304 pci@8/fibre-channel@4 c2t1d3s0 SP A0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t0d3s0 SP B0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t1d3s0 SP A0 active dead 0 0 Pseudo name=emcpower5a CLARiiON ID=CK200041200044 Logical device ID=6006016028A610005ABD62655B08D911 state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP A, current=Unknown ============================================================================== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ============================================================================== 2304 pci@8/fibre-channel@4 c2t0d2s0 SP B0 active dead 0 0 2304 pci@8/fibre-channel@4 c2t1d2s0 SP A0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t0d2s0 SP B0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t1d2s0 SP A0 active dead 0 0 Pseudo name=emcpower0a CLARiiON ID=CK200041200044 Logical device ID=6006016028A61000C65024C992D4D811 state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP B, current=Unknown ============================================================================== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ============================================================================== 2304 pci@8/fibre-channel@4 c2t0d0s0 SP B0 active dead 0 0 2304 pci@8/fibre-channel@4 c2t1d0s0 SP A0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t0d0s0 SP B0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t1d0s0 SP A0 active dead 0 0 Pseudo name=emcpower1a CLARiiON ID=CK200041200044 Logical device ID=6006016028A61000F075BD4E93D4D811 state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP A, current=Unknown ============================================================================== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ============================================================================== 2304 pci@8/fibre-channel@4 c2t0d1s0 SP B0 active dead 0 0 2304 pci@8/fibre-channel@4 c2t1d1s0 SP A0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t0d1s0 SP B0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t1d1s0 SP A0 active dead 0 0 Pseudo name=emcpower6a CLARiiON ID=CK200041200044 Logical device ID=6006016028A61000FC68E575620CD911 state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP B, current=Unknown ============================================================================== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ============================================================================== 2304 pci@8/fibre-channel@4 c2t0d4s0 SP B0 active dead 0 0 2304 pci@8/fibre-channel@4 c2t1d4s0 SP A0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t0d4s0 SP B0 active dead 0 0 2305 pci@8/fibre-channel@5 c3t1d4s0 SP A0 active dead 0 0

这些active dead的状态都是错误的.

3.执行重新配置

# powermt check Warning: CLARiiON device path c2t0d0s0 is currently dead. Do you want to remove it (y/n/a/q)? y Warning: CLARiiON device path c2t0d1s0 is currently dead. Do you want to remove it (y/n/a/q)? y Warning: CLARiiON device path c2t0d2s0 is currently dead. Do you want to remove it (y/n/a/q)? a Warning: CLARiiON device path c2t0d3s0 is currently dead. Warning: CLARiiON device path c2t0d4s0 is currently dead. Warning: CLARiiON device path c2t1d0s0 is currently dead. Warning: CLARiiON device path c2t1d1s0 is currently dead. Warning: CLARiiON device path c2t1d2s0 is currently dead. Warning: CLARiiON device path c2t1d3s0 is currently dead. Warning: CLARiiON device path c2t1d4s0 is currently dead. Warning: CLARiiON device path c3t0d0s0 is currently dead. Warning: CLARiiON device path c3t0d1s0 is currently dead. Warning: CLARiiON device path c3t0d2s0 is currently dead. Warning: CLARiiON device path c3t0d3s0 is currently dead. Warning: CLARiiON device path c3t0d4s0 is currently dead. Warning: CLARiiON device path c3t1d0s0 is currently dead. Warning: CLARiiON device path c3t1d1s0 is currently dead. Warning: CLARiiON device path c3t1d2s0 is currently dead. Warning: CLARiiON device path c3t1d3s0 is currently dead. Warning: CLARiiON device path c3t1d4s0 is currently dead. # powermt config # powermt restore # powermt save # powermt display dev=all Pseudo name=emcpower7a CLARiiON ID=CK200041200044 [Storage Group 2] Logical device ID=6006016028A61000482F2BA9720CD911 [LUN 1] state=alive; policy=CLAROpt; priority=0; queued-IOs=0 Owner: default=SP B, current=SP B ============================================================================== ---------------- Host --------------- - Stor - -- I/O Path - -- Stats --- ### HW Path I/O Paths Interf. Mode State Q-IOs Errors ============================================================================== 2304 pci@8/fibre-channel@4 c2t0d0s0 SP B0 active alive 0 0 2304 pci@8/fibre-channel@4 c2t1d0s0 SP A0 active alive 0 0 2305 pci@8/fibre-channel@5 c3t0d0s0 SP B0 active alive 0 0 2305 pci@8/fibre-channel@5 c3t1d0s0 SP A0 active alive 0 0

此时的active alive状态正常.

4.此时执行format可以看到正确的磁盘

# format Searching for disks...done c2t0d0: configured with capacity of 40.00GB c2t1d0: configured with capacity of 40.00GB c3t0d0: configured with capacity of 40.00GB c3t1d0: configured with capacity of 40.00GB emcpower7a: configured with capacity of 40.00GB AVAILABLE DISK SELECTIONS: 0. c1t0d0 /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e0106d9781,0 1. c1t1d0 /pci@9,600000/SUNW,qlc@2/fp@0,0/ssd@w500000e0106ef871,0 2. c2t0d0 /pci@8,700000/fibre-channel@4/sd@0,0 3. c2t1d0 /pci@8,700000/fibre-channel@4/sd@1,0 4. c3t0d0 /pci@8,700000/fibre-channel@5/sd@0,0 5. c3t1d0 /pci@8,700000/fibre-channel@5/sd@1,0 6. emcpower7a /pseudo/emcp@7 Specify disk (enter its number): ^D

具体Powermt命令参考:

http://blog.csdn.net/eygle/archive/2004/09/23/113881.aspx

本文参与 腾讯云自媒体分享计划,分享自作者个人站点/博客。
原始发表:2004年09月23日,如有侵权请联系 cloudcommunity@tencent.com 删除

本文分享自 作者个人站点/博客 前往查看

如有侵权,请联系 cloudcommunity@tencent.com 删除。

本文参与 腾讯云自媒体分享计划  ,欢迎热爱写作的你一起参与!

评论
登录后参与评论
0 条评论
热度
最新
推荐阅读
领券
问题归档专栏文章快讯文章归档关键词归档开发者手册归档开发者手册 Section 归档