PRIMECLUSTER Global Disk Services Configuration and Administration Guide 4.2 (Linux)

A.2.17 Instant Snapshot by OPC

The following functions are based on OPC functions of Fujitsu Storage Systems ETERNUS.

• Instant snapshot by OPC

  • [Operation]:[Proxy Operation]:[Update] in GDS Management View

  • "Yes" to "Instant Snapshot" in the [Part Proxy] dialog box invoked through [Operation]:[Proxy Operation]:[Part] in GDS Management View

  • sdxproxy Update command

  • sdxproxy Part -e instant command

• Master restoration by OPC

  • "No" to "Rejoin" in the [Restore Master] dialog box invoked through [Operation]:[Proxy Operation]:[Restore] in GDS Management View

  • sdxproxy Restore command

These functions are unavailable with disk units other than the following types.

ETERNUS8000 series, ETERNUS6000 series,
ETERNUS4000 series, ETERNUS3000 series,
GR720, GR730, GR740

These functions are also unavailable under such conditions that prevent the use of Advanced Copy functions as described in "Using the Advanced Copy Function in a Proxy Configuration."

Rebooting a Server While OPC Running
Even if a server is rebooted while the copying between master and proxy is being processed by OPC, the OPC copying will continue running. However, if OPC sessions are not present when the server is up again, GDS will assume that the copying failed and copy destination volumes will be INVALID. For recovering this status, see "(4) Master volume is in INVALID status." and "(5) Proxy volume is in INVALID status." in "Volume Status Abnormality."