HP-UNIX连EMC CX4-480存储需要注意的地方

2016年1月28日
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HP-UNIX连EMC CX4-480存储有2个需要特别注意的地方：

  1. HBA卡的WWN地址在EMC存储上注册时需注意：Initiater Type为HP No Auto Trespass或CLARiiON Open，Failover Mode为4（当HP-Unix 11.31上不安装powerpath时）
QQ图片20160128160104
2. 建PV时，设备符的选择
db2[/#]ioscan -fnkC disk
Class     I  H/W Path  Driver S/W State   H/W Type     Description
==================================================================
disk      0  0/0/0/2/0/0/0.8.0             sdisk   CLAIMED     DEVICE       HP      EH0146FAWJB
                      /dev/dsk/c0t8d0     /dev/dsk/c0t8d0s2   /dev/rdsk/c0t8d0    /dev/rdsk/c0t8d0s2
                      /dev/dsk/c0t8d0s1   /dev/dsk/c0t8d0s3   /dev/rdsk/c0t8d0s1  /dev/rdsk/c0t8d0s3
disk      1  0/0/0/2/0/0/0.8.1             sdisk   CLAIMED     DEVICE       HP      EH0146FAWJB
                      /dev/dsk/c0t8d1     /dev/dsk/c0t8d1s2   /dev/rdsk/c0t8d1    /dev/rdsk/c0t8d1s2
                      /dev/dsk/c0t8d1s1   /dev/dsk/c0t8d1s3   /dev/rdsk/c0t8d1s1  /dev/rdsk/c0t8d1s3
disk      4  0/0/0/5/0/0/0.2.23.255.0.0.0  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c2t0d0   /dev/rdsk/c2t0d0
disk     14  0/0/0/5/0/0/0.2.23.255.0.0.1  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c2t0d1   /dev/rdsk/c2t0d1
disk     15  0/0/0/5/0/0/0.2.23.255.0.0.2  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c2t0d2   /dev/rdsk/c2t0d2
disk     21  0/0/0/5/0/0/0.2.23.255.0.0.3  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c2t0d3   /dev/rdsk/c2t0d3
disk     25  0/0/0/5/0/0/0.2.23.255.0.0.4  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c2t0d4   /dev/rdsk/c2t0d4
disk      7  0/0/0/5/0/0/1.2.23.255.0.0.0  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c5t0d0   /dev/rdsk/c5t0d0
disk     10  0/0/0/5/0/0/1.2.23.255.0.0.1  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c5t0d1   /dev/rdsk/c5t0d1
disk     11  0/0/0/5/0/0/1.2.23.255.0.0.2  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c5t0d2   /dev/rdsk/c5t0d2
disk     23  0/0/0/5/0/0/1.2.23.255.0.0.3  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c5t0d3   /dev/rdsk/c5t0d3
disk     27  0/0/0/5/0/0/1.2.23.255.0.0.4  sdisk   CLAIMED     DEVICE       DGC     RAID 5
                      /dev/dsk/c5t0d4   /dev/rdsk/c5t0d4
    
db2[/#]strings /etc/lvmtab
/dev/vg00
M6(^
/dev/disk/disk2_p2
/dev/dsk/c0t8d0s2
/dev/vgarch
/dev/dsk/c5t0d3
/dev/dsk/c3t0d3
/dev/dsk/c2t0d3
/dev/vglock
/dev/dsk/c5t0d1
/dev/vgdb
/dev/dsk/c5t0d0
/dev/dsk/c2t0d0
/dev/vgadd
/dev/dsk/c2t0d4
/dev/dsk/c5t0d4
/dev/dsk/c3t0d4
/dev/dsk/c4t0d4

db2[/#]ioscan -m dsf
Persistent DSF           Legacy DSF(s)
========================================
/dev/rchgr/autoch1       /dev/rac/c6t0d1
/dev/rdisk/disk2         /dev/rdsk/c0t8d1
/dev/rdisk/disk2_p1      /dev/rdsk/c0t8d1s1
/dev/rdisk/disk2_p2      /dev/rdsk/c0t8d1s2
/dev/rdisk/disk2_p3      /dev/rdsk/c0t8d1s3
/dev/rtape/tape1_BEST    /dev/rmt/c6t0d0BEST
/dev/rtape/tape1_BESTn   /dev/rmt/c6t0d0BESTn
/dev/rtape/tape1_BESTb   /dev/rmt/c6t0d0BESTb
/dev/rtape/tape1_BESTnb   /dev/rmt/c6t0d0BESTnb
/dev/rdisk/disk3         /dev/rdsk/c0t8d0
/dev/rdisk/disk3_p1      /dev/rdsk/c0t8d0s1
/dev/rdisk/disk3_p3      /dev/rdsk/c0t8d0s3
/dev/rdisk/disk3_p2      /dev/rdsk/c0t8d0s2
/dev/rdisk/disk9         /dev/rdsk/c5t0d0
                         /dev/rdsk/c2t0d0
/dev/rdisk/disk18        /dev/rdsk/c5t0d1
                         /dev/rdsk/c2t0d1
/dev/rdisk/disk19        /dev/rdsk/c5t0d2
                         /dev/rdsk/c2t0d2
/dev/rdisk/disk24        /dev/rdsk/c5t0d3
                         /dev/rdsk/c2t0d3
/dev/rdisk/disk26        /dev/rdsk/c5t0d4
                         /dev/rdsk/c2t0d4

可以看到连上存储后有两种设备符Persistent DSF和Legacy DSF(s)，其中Persistent DSF聚合后的设备符，而Legacy DSF(s)指的是每根链路的设备符。

创建PV时应该使用Persistent DSF，但是要去掉r,如pvcreate /dev/disk/disk26

另外官方建议超时时间为180：

pvchange -t 180 /dev/disk/disk26

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