Pdch - HPE 3PAR StoreServ 8000 Service And Upgrade Manual

pd suggested action 6
Check the release notes for mandatory updates and patches to the HPE 3PAR OS version that is
installed and install as needed to support this PD in this drive enclosure (cage).

pdch

• Displays chunklets state issues
• Checks LD connection paths, remote chunklets, and remote disks
Format of possible pdch exception messages
pdch LD:<ldid> "Connection path is not the same as LD ownership"
pdch ch:<initpdid>:<initpdpos> "Chunklet is on a remote disk"
pdch LD:<ldid> "LD has <count> remote chunklets"
pdch example 1
Component ------------Summary Description------------
pdch LDs wwith connection path different than ownership
Component -Identifier- -------Detailed Description--------
pdch ld:tp-0-sd-0.1 Connection path is not the same as LD ownership
pdch suggested action 1
Use the CLI showld, showpd, and shownode commands. If the ownership issue is not created due to a
node missing or failed PD, contact the Hewlett Packard Enterprise Support Center to request support for
moving the LDs to the desired location for your system.
cli% showldId Name
19 pdsld0.0
20 pdsld0.1
21 pdsld0.2
pdch example 2
Component -------------------Summary Description------------------- Qty
pdch LDs with connection path different than ownership
pdch LDs with chunklets on a remote disk
Component -Identifier- ---------------Detailed Description--------------
pdch LD:35
pdch ld:35
pdch suggested action 2
The primary I/O paths for drives are balanced between the two nodes that are physically connected to the
drive cage. The node that normally has the primary path to a drive is considered the owning node. If the
secondary node path has to be used for I/O to the drive, that is considered remote I/O.
These messages usually indicate a node-to-cage FC path problem because the drives (chunklets) are
being accessed through their secondary path. These are usually a by-product of other conditions such as
drive-cage/node-port/FC-loop problems; focus on troubleshooting those. If a node is offline due to a
RAID -Detailed_State- Own SizeMB UsedMB Use Lgct LgId WThru MapV
1 normal 1/0
1 normal 1/0
1 normal 1/0
Connection path is not the same as LD ownership
LD has 1 remote chunklet
256 0 P,F 0
7680 0 P 0
256 0 P 0
Qty
1
--- Y N
--- Y N
--- Y N
23
18
Troubleshooting 157