6.5 RAID Level 10

The Diamond Storage Array can be set up into RAID Level 10 (striped and mirrored) groups to provide greater reliability by simultaneously writing data to two sleds. Each sled partnered through QuickRAID10, a CLI command, has the same data as its partner.

CAUTION

Selecting RAID configuration causes all previous drive data on the Diamond Storage Array to be erased. Make sure all information is backed up before configuring RAID groups.

The configuration of RAID Level 10 stripes information across several mirrored drives, performing the same operations on two partnered sleds at the same time thus providing an automatic backup of data. The QuickRAID10 command first creates six mirrored groups, then stripes them into groups of one, two or three RAID 10 groups (see Exhibit 6.5-2).

To set up RAID Level 10 groups

1Connect to Diamond Storage Array services via the RS-232 port or the optional Ethernet management services card (refer to Accessing the Array on page 17). You should now be in CLI.

2Continue with the CLI or access the RAID page of the ExpressNAV interface (refer to ATTO ExpressNAV: Browser-based Interface on page 25).

Note

Because the ExpressNAV pages take you through this process easily, the following instructions are based on the CLI commands. Use these instructions as a guide in ExpressNAV.

3Decide how many RAID10 groups you want (0, 1, 2 or 3).

4Type set QuickRAID10 [0 1 2 3].

Note

0 will return the array to JBOD.

5The array will update NVRAM. The Ready* displays.

6Type SaveConfiguration.

7Type FirmwareRestart to reboot the array.

8Reboot the host computer.

To remove RAID groups

1Connect to Diamond Storage Array services via the RS-232 port or the optional Ethernet management services card (refer to Accessing the Array on page 17). You should now be in CLI.

An example of RAID 10 (QuickRAID10 2) in a fully populated Diamond Storage Array: 6 sleds, each partnered with another sled, with each partner a mirror image of the other, configured into two stripe groups

2 spanned drives per sled

each sled a mirror image of its

partner

2 virtual devices

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ATTO Technology S-Class manual To set up RAID Level 10 groups, Type set QuickRAID10 0 1 2

S-Class specifications

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