first try this:  echo "1" > /sys/class/fc_host/host0/issue_lip echo "- - -" > /sys/class/scsi_host/host0/scan  echo "1" > /sys/class/fc_host/host1/issue_lip echo "- - -" > /sys/class/scsi_host/host1/scan  where host0 and host1 are your HBAs, double check your system first. This will rescan the bus, then run fdisk -l and see if device capacity changed. When i work with Linux boxes and LVM ..i prefer to provision new devices and extend volume group/file system instead of extending existing LUN.
Hi everyone,  I have an existing MetaLUN sized at 240GB. I've expanded this LUN by stripping with another 240GB LUN. The properties of the metaLUN shows the new size correctly, but at the host side, I'm unable to see the new size. Is there a powerpath command that I can use to recognize the size change?  [root ~]# pvs  PV              VG          Fmt  Attr PSize   PFree  /dev/emcpowera1 abd1_log_vg lvm2 a-    60.00G    0  /dev/emcpowerb1 abd1_tbl_vg lvm2 a-   240.00G    0  /dev/emcpowerc1 abd1_tbl_vg lvm2 a-   120.00G    0 [root ~]# powermt display dev=emcpowerbPseudo name=emcpowerbCLARiiON ID=APM00093400728 [abd8001]Logical device ID=600601609C70250000B8F32D8BBFDE11 [LUN 100]state=alive; policy=CLAROpt; priority=0; queued-IOs=0Owner: default=SP A, current=SP A       Array failover mode: 1==============================================================================---------------- Host ---------------   - Stor -   -- I/O Path -  -- Stats ---###  HW Path                I/O Paths    Interf.   Mode    State  Q-IOs Errors==============================================================================   7 qla2xxx                   sdk       SP A1     active  alive      0      0   7 qla2xxx                   sdl       SP B2     active  alive      0      0   8 qla2xxx                   sdm       SP A0     active  alive      0      0   8 qla2xxx                   sdn       SP B3     active  alive      0      0 I've tried everything that I know but still unable to recognize the new size. This is first time I'm managing an EMC unit... I'd appreciate any help. Thanks guys!
Unable to recognize expanded size of a LUN