7.2 Optional Hot Spare Sled

To maintain array up time with minimal risk of data loss, individual sleds which fail may be replaced with a spare sled in some configurations.

In most configurations, if a member of a virtual device becomes degraded, you must swap out the faulted sled as defined in Hot Swap Operating Instructions on page 71. If you have not enabled AutoRebuild, you must also start a manual rebuild.

For four configurations, however, Hot Spare sleds may be designated as replacements for faulted sleds without intervention by you or a host.

Each configuration requires a certain number of Hot Spare sleds. These sleds, once designated as Hot Spares, are not available for other use.

The following configurations will support optional Hot Spare sleds

•RAID Level 1: 2 Hot Spare sleds (see Exhibit 7.2-1)

•RAID Level 10: 1 group, 2 Hot Spare sleds (see Exhibit 7.2-2)

•RAID Level 5:1 group, 1 Hot Spare sled (see Exhibit 7.2-3)

•RAID Level 5: 2 groups, 2 Hot Spare sleds (see Exhibit 7.2-3)

Note

All arrays using RAID Level 10 and Hot Spares options must be fully populated.

If a sled becomes degraded and a Hot Spare sled has been designated

•the Diamond will replace the degraded sled with the Hot Spare sled, simulating a hot swap of a sled with AutoRebuild enabled, without intervention

•any sled with a Faulted drive will not be used. Faulted sleds maintain their faulted status until they are removed and re-inserted or if the system is restarted.

•Hot Spares are handled as sleds, not as individual drives

•the Hot Spare sled replaces the Faulted sled in the Virtual Device

•a rebuild will automatically start after the hot spare is switched into the Virtual Device, even if

AutoRebuild is disabled.

•the DriveInfo command will list the number of Hot Spare sleds currently in the system

•you can replace the faulted drive or sled later. However, faulted is a non-persistent state. After a power cycle, the faulted sled will display on the DriveInfo screen as have no type, i.e, the type field will be blank. The sled cannot be accessed but must be removed and replaced. If it is replaced, it will be assigned in this order

1if a Virtual Device is missing a sled or you are hot swapping a sled, the new sled becomes part of the existing Virtual Device.

2if a Hot Spare sled is missing, the replacement sled will become a Hot Spare sled.

CAUTION

In a Hot Spare configuration, a drive sled should only be taken offline if there is absolutely no activity on that drive. If there is any activity, the rebuild of the Hot Spare sled may be flawed.

To set up RAID Level 1 with Hot Spare sleds

1Connect to Diamond Storage Array services (refer to Accessing the Array on page 17) and use the CLI or enter ATTO ExpressNAV Advanced CLI Configuration page.

2Type set QuickRAID1 2

3Type SaveConfiguration Restart

The array is configured into one RAID Level 1 group with two Hot Spare sleds.

To set up RAID Level 10 with Hot Spare sleds

1Connect to Diamond Storage Array services (refer to Accessing the Array on page 17) and use the CLI or enter ATTO ExpressNAV interface Advanced CLI Configuration page.

2Type set QuickRAID10 1 2

3Type SaveConfiguration Restart

The array is configured into one RAID Level 10 group with two Hot Spare sleds.

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ATTO Technology S-Class manual Optional Hot Spare Sled, Type set QuickRAID1 Type SaveConfiguration Restart
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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.

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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.
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