Table 2.8 Snapshot Pairing Status - Hitachi TAGMASTORE MK-90RD011-25 User Manual

Read/Write
Primary
volume Copy on write
S Restore copy
Table 2.8 SnapShot Pairing Status
Status Pairing Status
SMPL Unpaired (SnapShot) volume
PAIR (PFUL) The snapshot available state allocated the resource.
COPY The preparing state allocates the resource for the snapshot.
RCPY The copying state from snapshot to the primary volume by
using restore option.
PSUS (PFUS) The differences of the updated data of the primary and
secondary volume are controlled with copying on write.
PSUE (Error) "PSUS" status owing to an internal failure. The differences of
the updated data for the snapshot volume are not controlled.
Note 1: V-VOL unmapped to the SVOL of SnapShot will reply to SCSI Inquiry, but Reading
and/or Writing will not be allowed.
Note 2: Reading and writing are enabled, as long as no failure occurs in the primary volume.
Read/Write
Secondary
volume
S
Hitachi Command Control Interface (CCI) User and Reference Guide
Primary Secondary
R/W enabled R/W disable (Note 1)
R/W enabled R/W disable
R/W enabled R/W disable
R/W disable R/W disable
R/W enabled R/W enabled
R/W enabled R/W disable
(Note 2)
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