Adaptec 5325302057 User Guide - Page 73
Ensuring Pool Capacity for Your Snapshots, Recovering from a Pool Capacity Warning
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Backing Up Your Data with Snapshots Ensuring Pool Capacity for Your Snapshots Ensuring that there is adequate capacity in a pool to maintain your snapshots is extremely important. Currently, when a pool reaches maximum capacity, all snapshots contained within it go offline and are only retrievable manually. Always carefully monitor the capacity of any pool that contains snapshots to avoid the lengthy retrieval process and prevent snapshot loss. Recovering from a Pool Capacity Warning Adaptec Storage Manager generates a warning message when pool capacity reaches 5%. A second warning message is generated when pool capacity reaches 3%. When you receive one of these messages, delete any unneeded volumes from the pool or expand the size of the pool as soon as possible. Recovering from a Pool Capacity Failure If pool capacity becomes exhausted, all snapshots within that pool (and all the volumes on which the snapshots are based) go offline, and Adaptec Storage Manager generates a failure message. To recover, see "Recovering Snapshots After a Pool Capacity Failure" on page 148. Scheduling a Snapshot Job If a job is lengthy and limits access to your iSCSI Storage Appliance, you may want to set a date and time for the job to complete, instead of running the job while there is activity on your IP SAN. If a job must be performed regularly, you can schedule it to recur at preset times. At this time, on the iSCSI Storage branch of Adaptec Storage Manager, you can schedule snapshot jobs. To schedule a job: 1 Complete each step of the task until you are prompted to click Apply. (Don't click Apply.) 2 Click Schedule. The schedule window opens. 3 Set the date and time for the job. Note Keep geography in mind-If you are scheduling jobs on an iSCSI Storage Appliance located in another geographical area, remember that the time you set for a scheduled job is the Management Service's time, which may be different from local time or the iSCSI Storage Appliance's time. You will be prompted to select a new time if the one you've set occurs in the past on the Management Service. Chapter 6 Protecting Your Data 67
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