qos
example
Component -------Summary Description-------- Qty
QoS VVSets with non-zero reject counts 1
Component -Identifier- -----------Detailed Description------------
QoS vvset6 VVSet has logged 1756.0 rejects in 24 hours
qos
suggested action
Use the CLI
showqos
command to determine if the QoS rules fit the needs of the host and application
access. If the QoS rules for this
vvset
must be adjusted or removed, use the CLI
setqos
command to
set new limits, to remove, or disable the QoS rules for this
vvset
. If the QoS rules appear correct, use
the CLI
statvv
command to determine if there are other VVs that are causing QoS to reject I/O requests
for this
vvset
. Either change the QoS rules to match the host/application load or adjust the load to the
VVs on this system.
rc
Checks for the following Remote Copy issues.
• Remote Copy targets
• Remote Copy links
• Remote Copy Groups and VVs
• Remote Copy internal structure
• Too many Remote Copy targets configured as sync
Format of possible
rc
exception messages
RC rc:<name> "All links for target <name> are down but target not yet marked failed."
RC rc:<name> "Target <name> has failed."
RC rc:<name> "Link <name> of target <target> is down."
RC rc:<name> "Group <name> is not started to target <target>."
RC rc:<vvname> "VV <vvname> of group <name> is stale on target <target>."
RC rc:<vvname> "VV <vvname> of group <name> is not synced on target <target>."
RC Structure "Remote Copy internal structure is incompatible."
RC rc: "Target" "More than 8 sync targets have been setup."
rc
example
Component --Detailed Description-- Qty
RC Stale volumes 1
Component --Identifier--- ---------Detailed Description---------------
RC rc:yush_tpvv.rc VV yush_tpvv.rc of group yush_group.r1127
is stale on target S400_Async_Primary.
rc
suggested action
Perform Remote Copy troubleshooting such as checking the physical links between the storage system,
and using CLI commands such as:
•
showrcopy
•
showrcopy -d
Troubleshooting
161