HP Surestore E Disk Array XP256 HP XP P9000 External Storage Access Manager Us - Page 32

The following table describes pair status in RAID Manager. Item SMPL COPY PAIR PSUS SSUS PSUE PDUB SSWS Description The volume is not assigned to an ESAM pair. The initial copy for an ESAM pair is in progress, but the pair is not synchronized yet. The initial copy for an ESAM pair is completed, and the pair is synchronized. Although the paired status is retained, the user split the ESAM pair, and update of S-VOL is stopped. This status only applies to SVOL. While the pair is split, the storage system keeps track of updates to P-VOL. Although the paired status is retained, the user split the ESAM pair, and update of S-VOL is stopped. This status only applies to P-VOL. If the pair is split with the option of permitting update of S-VOL specified, the storage system keeps track of updates to S-VOL. Although the paired status is retained, update of S-VOL is stopped because of an error status. PSUE is the same as PSUS (SSUS) in terms of symptom; the difference is that PSUE is caused by an internal error. This status is shown only for pairs using LUSE. Although the paired status is retained, the pair status transition is suspended because of an error in some LDEVs within LUSE. The paired status is retained. Processing for resync with P-VOL and S-VOL swapped (horctakeover command) is in progress. Split types (PSUS status) Split types are shown in the Detailed Information dialog box; they specify the reason a pair is split. When you split a pair, the pair status changes to PSUS and the system stops updates to the S-VOL. You can set an option to block updates to the P-VOL also while the pair is split. This results in the P-VOL and S-VOL staying synchronized. If the P-VOL accepts write I/O while the pair is split, the primary storage system records the updated tracks of the P-VOL as differential data. This data is copied to the S-VOL when the pair is resynchronized. The following table lists PSUS types. Split type Applies to P-VOL by Operator P-VOL S-VOL by Operator P-VOL S-VOL by MCU S-VOL Delete pair to RCU P-VOL Description The user split the pair from the primary storage system using the P-VOL Failure on the Suspend Type option for Suspend Kind. The S-VOL split type is PSUS-by MCU. The user split the pair from the primary or secondary storage system using the S-VOL on the Suspend Type option for Suspend Kind. Or, the pair is split because of a failover in the storage system. The secondary storage system received a request from the primary storage system to split the pair. The P-VOL split type is PSUS-P-VOL by Operator or PSUS-S-VOL by Operator. The primary storage system detected that the S-VOL status changed to SMPL because the user released the pair from the secondary storage system. The pair cannot be resynchronized because the S-VOL does not have the PSUS/PSUE status. Suspend types (PSUE status) Suspend types are shown in the Detailed Information dialog box; they specify why the pair was suspended by the system. 32 Working with volume pairs