User manual

iSCSi reStore ld proCeSS

The iSCSI Backup function is used to backup an entire logical drive

with its RAID conﬁguration intact. The restore function for iSCSI

Backup will only work if the physical drives where the logical drive will

be replaced meet two important conditions. First, the drives must not

be conﬁgured, that is, there cannot be an array or logical drive present

on the physical drives. And second, the drives must be at least as

large as the drives that contained the original logical drive in the iSCSI

Backup.

To recover a logical drive that has failed, use the Restore function of

the iSCSI Backup. In order to complete a recovery, the DataGuard

Appliance with the failed logical drive must be populated with

unconﬁgured hard drives in the same number and size as when the

iSCSI Backup was created.

If the failed logical drive or the array in which it was created are still

present, the restore function will abort because an LD is detected. In

order to reuse the same physical drives, assuming they remain in good

working condition, it will be necessary to ﬁrst remove the existing

array made up of the physical drives. Alternatively, the original physical

drives can be replaced with new drives that are the same size or larger.

To restore a failed logical drive, make sure the conditions discussed

previously apply, then follow these steps:

1. Click NAS tab > iSCSI Initiator menu item then click the

Create button.

2. Enter the IP address of the remote iSCSI device used for backup

and enter the Port used. These values should be the same as

those entered in the iSCSI Backup conﬁguration. Click Connect

to continue.

3. Find the iSCSI Name of the device in the pull-down menu. If CHAP

has been conﬁgured, click the CHAP option box to enable it and

enter the User Name and Password in the spaces provided. Click

Next to continue.

4. If more than one LD are backed up on the iSCSI device it will be

necessary to choose the LUN ID of the one that is being restored.

Use the LUN ID pull-down menu to select it. Click Next to continue.

5. Choose the Source from the pull-down menu if there are more than

one iSCSI devices with backups.

6. Click on the Restore button. The restore process will commence

after a brief negotiation process. When both systems are ready,

the restore will begin. The length of time needed to complete the

process depends on the size of the LD and the amount of data

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NAS > iSCSI Initiator