How to mount 3PAR Virtual Copy onto RHEL Servers

By Dusan Baljevic (dusan.baljevic@ieee.org)

This was done as part of labs Dusan Baljevic prepared for training course 3PAR SAN. Testing Virtual Copy export to RHEL 5.x server…

A. On Linux server check the WWNs:

# cat /etc/redhat-releaseRed Hat Enterprise Linux Server release 5.4 (Tikanga)

# cat /sys/class/fc_host/host*/port_name0x50014380167d7e940x50014380167d7e96

B. Go to 3PAR MC or CLI and create host definition for Linux server,based on the WWNs above…

C. Then, within 3PAR MC or CLI export some VVs to Linux server. InThis case, two volumes were exported: one fully provisioned, and onethin provisioned.

D. Go to Linux server and check the new disks:

# hp_rescan -aRescanning /sys/class/scsi_host/host0Rescanning /sys/class/scsi_host/host1

# multipath -lmpath1 (360002ac0000000000000000700002894) dm-3 3PARdata,VV[size=2.0G][features=1 queue_if_no_path][hwhandler=0][rw]\_ round-robin 0 [prio=0][active]\_ 0:0:0:1 sdb 8:16  [active][undef]\_ 0:0:1:1 sdd 8:48  [active][undef]mpath0 (360002ac0000000000000000f00002894) dm-2 3PARdata,VV[size=2.0G][features=1 queue_if_no_path][hwhandler=0][rw]\_ round-robin 0 [prio=0][active]\_ 0:0:0:0 sda 8:0   [active][undef]\_ 0:0:1:0 sdc 8:32  [active][undef]

# pvscan  PV /dev/cciss/c0d0p2   VG VolGroup00   lvm2 [136.56 GB / 0    free]  Total: 1 [136.56 GB] / in use: 1 [136.56 GB] / in no VG: 0 [0   ]

# pvcreate /dev/mapper/mpath0  Physical volume "/dev/mapper/mpath0" successfully created# pvcreate /dev/mapper/mpath1

  Physical volume "/dev/mapper/mpath1" successfully created

# pvscan  PV /dev/cciss/c0d0p2   VG VolGroup00      lvm2 [136.56 GB / 0    free]  PV /dev/dm-2                              lvm2 [2.00 GB]  PV /dev/dm-3                              lvm2 [2.00 GB]  Total: 3 [140.56 GB] / in use: 1 [136.56 GB] / in no VG: 2 [4.00 GB]

# vgcreate vg3par00 /dev/mapper/mpath0  Volume group "vg3par00" successfully created

# vgcreate vg3par01 /dev/mapper/mpath1  Volume group "vg3par01" successfully created

# vgscan  Reading all physical volumes.  This may take a while...  Found volume group "vg3par01" using metadata type lvm2  Found volume group "vg3par00" using metadata type lvm2  Found volume group "VolGroup00" using metadata type lvm2

# lvcreate -l 500 -n lv3par00 vg3par00  Logical volume "lv3par00" created

# lvcreate -l 500 -n lv3par01 vg3par01  Logical volume "lv3par01" created

# mkfs.ext3 -j /dev/vg3par00/lv3par00mke2fs 1.39 (29-May-2006)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)256000 inodes, 512000 blocks25600 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=52428800016 block groups32768 blocks per group, 32768 fragments per group16000 inodes per groupSuperblock backups stored on blocks:        32768, 98304, 163840, 229376, 294912

Writing inode tables: doneCreating journal (8192 blocks): doneWriting superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 34 mounts or180 days, whichever comes first.  Use tune2fs -c or -i to override.

# mkfs.ext3 -j /dev/vg3par01/lv3par01

mke2fs 1.39 (29-May-2006)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)256000 inodes, 512000 blocks25600 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=52428800016 block groups32768 blocks per group, 32768 fragments per group16000 inodes per groupSuperblock backups stored on blocks:        32768, 98304, 163840, 229376, 294912

Writing inode tables: doneCreating journal (8192 blocks): doneWriting superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 30 mounts or180 days, whichever comes first.  Use tune2fs -c or -i to override.

# mkdir /3parlv0

# mkdir /3parlv1

# cat /etc/fstab/dev/VolGroup00/LogVol00 /                       ext3    defaults        1 1LABEL=/boot             /boot             ext3    defaults        1 2tmpfs                   /dev/shm          tmpfs   defaults        0 0devpts                  /dev/pts          devpts  gid=5,mode=620  0 0sysfs                   /sys              sysfs   defaults        0 0proc                    /proc             proc    defaults        0 0/dev/VolGroup00/LogVol01 swap              swap    defaults        0 0/dev/vg3par00/lv3par00  /3parlv0           ext3    defaults        0 0/dev/vg3par01/lv3par01  /3parlv1           ext3    defaults        0 0

# mount -a

E. Go to 3PAR MC or CLI and create a Virtual Copy of one of the VVs exported to Linux server:

inserv034 cli% showvv                                                    ---Rsvd(MB)---- -(MB)-Id Name                     Prov Type  CopyOf        BsId Rd -Detailed_State-  Adm  Snp   Usr  VSize1 .srdata                  full base  ---              1 RW normal              0    0 61440  614400 admin                    full base  ---              0 RW normal              0    0 10240  1024021 tariq-test01-FC          tpvv base  ---             21 RW normal            128  512   512   409622 tariq-test02-fc.0        tpvv base  ---             22 RW normal            128  512   512   102423 tariq-test02-fc.1        tpvv base  ---             23 RW normal            128  512   512   102424 tariq-test02-fc.2        tpvv base  ---             24 RW normal            128  512   512   102425 tariq-test02-fc.3        tpvv base  ---             25 RW normal            128  512   512   102426 tariq-test02-fc.4        tpvv base  ---             26 RW normal            128  512   512   10243 TL_1_2G_Thick            cpvv base  ---              3 RW normal  128  512  2048   204828  TL_1_2G_Thick_VC        snp  vcopy TL_1_2G_Thick    3 RW normal             --   --    --   2048

2 TL_1_4GB_TP              tpvv base  ---              2 RW normal            128  512   512   40967 TL_2_2G_Thick            cpvv base  ---              7 RW normal            128  512  2048   204831  Dusan-VC0               snp  vcopy TL_2_2G_Thick    7 RW normal             --   --    --   20484 TL_2_4GB_TP              tpvv base  ---              4 RW normal            128  512   512   40968 TL_3_2G_Thick_namechange cpvv base  ---              8 RW normal            128  512  3072   30729 TL_4_2G_Thick            cpvv base  ---              9 RW normal            128  512  2048   20486 TL_4_4GB_TP              tpvv base  ---              6 RW normal            128  512   512   409610 TL_TPVV_1GB_1.0          tpvv base  ---             10 RW normal            128  512   512   102411 TL_TPVV_1GB_1.1          tpvv base  ---             11 RW normal            128  512   512   102412 TL_TPVV_1GB_1.2          tpvv base  ---             12 RW normal            128  512   512   102413 TL_TPVV_1GB_1.3          tpvv base  ---             13 RW normal            128  512   512   102414 TL_TPVV_1GB_1.4          tpvv base  ---             14 RW normal            128  512   512   102415 TL_TPVV_2GB_Template     tpvv base  ---             15 RW normal            128  512   512   204816 TL_VV_CLI_4GB            full base  ---             16 RW normal              0    0  4096   409618 TL_VV_Multi_1.0          full base  ---             18 RW normal              0    0  1024   102419 TL_VV_Multi_1.1          full base  ---             19 RW normal              0    0  1024   102420 TL_VV_Multi_1.2          full base  ---             20 RW normal              0    0  1024   1024----------------------------------------------------------------------------------------------------27 total                                                                      2432 9728 95744 120832

Then… export Virtual Copy Dusan-VC0 to Linux host:

inserv034 cli% showvlunActive VLUNsLunVVName               HostName            -Host_WWN/iSCSI_Name-  Port Type Status ID  0 TL_TPVV_2GB_Template linux               50014380167D7E94      0:2:3 host active  0  1 TL_2_2G_Thick        linux               50014380167D7E94      0:2:3 host active  0  2 Dusan-VC0            linux               50014380167D7E94      0:2:3 host active  0

  0 TL_TPVV_2GB_Template linux               50014380167D7E94      1:2:3 host active  0  1 TL_2_2G_Thick        linux               50014380167D7E94      1:2:3 host active  0  2 Dusan-VC0            linux               50014380167D7E94      1:2:3 host active  0  0 tariq-test01-FC      tariq-windows-host1 5001438003B0B394  0:2:3 host active  0  0 tariq-test01-FC      tariq-windows-host1 5001438003B0B396      0:2:4 host active  0  0 tariq-test01-FC      tariq-windows-host1 5001438003B0B394      1:2:3 host active  0  0 tariq-test01-FC      tariq-windows-host1 5001438003B0B396      1:2:4 host active  0  0 TL_1_4GB_TP          Windows_HostB       5001438003B0B390      0:2:3 host active  0  2 TL_4_4GB_TP          Windows_HostB       5001438003B0B390      0:2:3 host active  0  3 TL_2_4GB_TP          Windows_HostB       5001438003B0B390      0:2:3 host active  0  0 TL_1_4GB_TP          Windows_HostB       5001438003B0B392      0:2:4 host active  0  2 TL_4_4GB_TP          Windows_HostB       5001438003B0B392      0:2:4 host active  0  3 TL_2_4GB_TP          Windows_HostB       5001438003B0B392      0:2:4 host active  0  0 TL_1_4GB_TP          Windows_HostB       5001438003B0B390      1:2:3 host active  0  2 TL_4_4GB_TP          Windows_HostB       5001438003B0B390      1:2:3 host active  0  3 TL_2_4GB_TP          Windows_HostB       5001438003B0B390      1:2:3 host active  0  0 TL_1_4GB_TP          Windows_HostB       5001438003B0B392      1:2:4 host active  0  2 TL_4_4GB_TP          Windows_HostB       5001438003B0B392      1:2:4 host active  0  3 TL_2_4GB_TP          Windows_HostB       5001438003B0B392      1:2:4 host active  0---------------------------------------------------------------------------------------22 total

VLUN TemplatesLunVVName               HostName            -Host_WWN/iSCSI_Name- Port Type 0 TL_TPVV_2GB_Template linux               ----------------       --- host  1 TL_2_2G_Thick        linux               ----------------       --- host  2 Dusan-VC0            linux               ----------------       --- host

  0 tariq-test01-FC      tariq-windows-host1 ----------------       --- host  0 TL_1_4GB_TP          Windows_HostB       ----------------       --- host  2 TL_4_4GB_TP          Windows_HostB       ----------------       --- host  3 TL_2_4GB_TP          Windows_HostB       ----------------       --- host----------------------------------------------------------------------------  7 total

F. On Linux server:

# hp_rescan –a

# multipath -lmpath2 (360002ac0000000000000001f00002894) dm-6 3PARdata,VV[size=2.0G][features=1 queue_if_no_path][hwhandler=0][rw]\_ round-robin 0 [prio=0][active]\_ 0:0:0:2 sde 8:64  [active][undef]\_ 0:0:1:2 sdf 8:80  [active][undef]mpath1 (360002ac0000000000000000700002894) dm-3 3PARdata,VV[size=2.0G][features=1 queue_if_no_path][hwhandler=0][rw]\_ round-robin 0 [prio=0][active]\_ 0:0:0:1 sdb 8:16  [active][undef]\_ 0:0:1:1 sdd 8:48  [active][undef]mpath0 (360002ac0000000000000000f00002894) dm-2 3PARdata,VV[size=2.0G][features=1 queue_if_no_path][hwhandler=0][rw]\_ round-robin 0 [prio=0][active]\_ 0:0:0:0 sda 8:0   [active][undef]\_ 0:0:1:0 sdc 8:32  [active][undef]

# vgscan  Reading all physical volumes.  This may take a while...  Found duplicate PV sPqCNKe7AQY38Jb2xiXHqPJVJcXMhhif: using /dev/dm-6 not /dev/dm-3  Found volume group "vg3par01" using metadata type lvm2  Found volume group "vg3par00" using metadata type lvm2  Found volume group "VolGroup00" using metadata type lvm2

# pvscan  Found duplicate PV sPqCNKe7AQY38Jb2xiXHqPJVJcXMhhif: using /dev/dm-6 not /dev/dm-3  PV /dev/dm-6           VG vg3par01     lvm2 [2.00 GB / 44.00 MB free]  PV /dev/dm-2           VG vg3par00     lvm2 [2.00 GB / 44.00 MB free]  PV /dev/cciss/c0d0p2   VG VolGroup00   lvm2 [136.56 GB / 0    free]  Total: 3 [140.55 GB] / in use: 3 [140.55 GB] / in no VG: 0 [0   ]

# lvscan  Found duplicate PV sPqCNKe7AQY38Jb2xiXHqPJVJcXMhhif: using /dev/dm-6 not /dev/dm-3  ACTIVE            '/dev/vg3par01/lv3par01' [1.95 GB] inherit  ACTIVE            '/dev/vg3par00/lv3par00' [1.95 GB] inherit  ACTIVE            '/dev/VolGroup00/LogVol00' [118.94 GB] inherit  ACTIVE            '/dev/VolGroup00/LogVol01' [17.62 GB] inherit

# vgimportclone --basevgname vg3par00-snap /dev/dm-3         WARNING: Activation disabled. No device-mapper interaction will be attempted.  Physical volume "/tmp/snap.STU18061/vgimport0" changed  1 physical volume changed / 0 physical volumes not changed  WARNING: Activation disabled. No device-mapper interaction will be attempted.  Volume group "vg3par01" successfully changed  Volume group "vg3par01" successfully renamed to "vg3par00-snap"  Reading all physical volumes.  This may take a while...  Found volume group "vg3par01" using metadata type lvm2  Found volume group "vg3par00-snap" using metadata type lvm2  Found volume group "vg3par00" using metadata type lvm2  Found volume group "VolGroup00" using metadata type lvm2

# vgchange -a y vg3par00-snap  1 logical volume(s) in volume group "vg3par00-snap" now active

# cat /etc/fstab/dev/VolGroup00/LogVol00 /dev/VolGroup00/LogVol00 /                       ext3    defaults        1 1LABEL=/boot             /boot             ext3    defaults        1 2tmpfs                   /dev/shm          tmpfs   defaults        0 0devpts                  /dev/pts          devpts  gid=5,mode=620  0 0sysfs                   /sys              sysfs   defaults        0 0proc                    /proc             proc    defaults        0 0/dev/VolGroup00/LogVol01 swap              swap    defaults        0 0/dev/vg3par00/lv3par00  /3parlv0           ext3    defaults        0 0/dev/vg3par01/lv3par01  /3parlv1           ext3    defaults        0 0/dev/vg3par00-snap/lv3par01 /3parlv0-vc ext3    defaults        0 0

# mkdir /3parlv0-vc

# mount –a

# dfFilesystem           1K-blocks      Used Available Use% Mounted on/dev/mapper/VolGroup00-LogVol00                     120807460   3843856 110727856   4% //dev/cciss/c0d0p1       101086     16833     79034  18% /boottmpfs                  8219324         0   8219324   0% /dev/shm/dev/mapper/vg3par01-lv3par01                       2015824     35808   1877616   2% /3parlv1/dev/mapper/vg3par00-lv3par00                       2015824     35808   1877616   2% /3parlv0/dev/mapper/vg3par00--snap-lv3par01                       2015824     35808   1877616   2% /3parlv0-vc