ATTO Technology S-Class manual Rebuilding RAID Configurations

Models: S-Class

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6.6 Rebuilding RAID Configurations

If a sled must be removed and a new sled inserted into the Diamond Storage Array while it is configured in a RAID Level 1, 5 or 10, you must rebuild the RAID Level using CLI commands or the ExpressNAV interface.

CAUTION

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

When you initially set up RAID groups using the QuickRAID command, groups are synchronized automatically because there is no pre-existing data on the drives. However, drives may display as “degraded, and you need to set all LUNs to OK status.

The simplest method to check RAID group status is to 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.

To reset LUN status

1Display the status of the array by typing RAIDRebuildStatus.

2Set the sleds which are listed as degraded to a rebuild state of OK by entering

set RAIDRebuildState [sled number] OK

To synchronize mirrored drives automatically

If mirrored drives are removed for more than 15 to 30 seconds and then re-inserted or replaced, the replaced drives are labeled “degraded” when you check the Array’s status by typing

RAIDRebuildStatus. If you enable AutoRebuild. the

array rebuilds the degraded drives automatically when a new drive is inserted.

Note

Drive rebuilding reduces performance. You may want to leave AutoRebuild at the default disabled and manually rebuild during off-peak hours, or use the RebuildPriority command described below.

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).

3Type AutoRebuild enabled.

4Information displays on the screen while the array updates NVRAM ending with a Ready*.

5Type SaveConfiguration.

6Type FirmwareRestart to reboot the array.

7Reboot the host computer connected via Fibre Channel or SCSI to the array.

8To verify the configuration, type

RAIDRebuildStatus

9If a rebuild is necessary, the array will automatically rebuild drives.

Rebuild priority

Drive rebuilding reduces performance. Use the RebuildPriority command through the CLI or on the RAID page of the ExpressNAV interface to customize when your rebuilds will occur.

Choices are High, Low and Same.

If you select High priority, rebuild I/O requests are implemented before system I/O requests.

If you select Low priority, rebuild I/O requests execute only when there are no pending I/O requests.

If you select Same priority, rebuild I/O and system I/O receive equal consideration.

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ATTO Technology Inc. Diamond Storage Array Installation and Operation Manual

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ATTO Technology S-Class manual Rebuilding RAID Configurations

S-Class specifications

ATTO Technology S-Class is a comprehensive solution designed to optimize storage and networking performance for digital content creation and enterprise environments. This product line specializes in high-performance connectivity, facilitating seamless data transfer and management.

One of the key features of the S-Class is its advanced RAID (Redundant Array of Independent Disks) capabilities. This incorporates various levels of RAID configurations, enabling users to choose the right balance between performance and redundancy. The technology ensures data integrity while maximizing throughput, a crucial aspect for workflows dealing with large files such as video editing and graphic design.

Another standout characteristic of the S-Class is its support for high-speed interfaces, including Thunderbolt and Fibre Channel. With the ability to leverage these high-bandwidth connections, users can achieve exceptional data transfer rates that significantly reduce the time required for file uploads and transfers. This is particularly important in environments demanding real-time data access, such as broadcasting and production studios.

The S-Class also incorporates intelligent storage management features. The ATTO ConfigTool offers a user-friendly interface for monitoring and configuring storage settings, allowing for real-time adjustments and performance tuning. This ensures that users can effectively manage their storage resources, balancing capacity and performance according to their specific needs.

Furthermore, the technology employs a robust set of data protection mechanisms, including snapshot and backup capabilities. This ensures that critical data is safeguarded against potential loss, enhancing operational reliability. The integration of these features supports comprehensive workflow solutions, benefiting industries that require continuous access to high-volume data.

Lastly, the S-Class is built to integrate seamlessly with popular operating systems and platforms, providing versatility and ease of deployment. Whether used in a small studio or a large enterprise environment, ATTO Technology's S-Class stands out as a solution that combines speed, reliability, and manageable performance, making it a top choice for professionals who demand the best in their storage and network infrastructure.

In summary, ATTO Technology S-Class is not just a storage solution; it's a gateway to unlocking peak performance in data management, tailored for the challenges of today’s data-driven landscape.