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Xsan volume may not mount, fsmpm may not run after migrating from Mac OS X v10.6 to OS X Lion (Apple KB)

Xsan may need to be enabled on OS X Lion clients that were migrated from Mac OS X v10.6 via the Migration Assistant. A migrated system may show fsmpm's status as not running, or may show the computer as unreachable or offline in Xsan Admin on another system such as the metadata controller.

Read more: https://support.apple.com/en-us/HT202273

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Xsan: Shutdown and startup order for network devices (Apple KB)

Learn about shut down and startup order for network devices.


Read more: https://support.apple.com/en-us/HT202018

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Promise VTrak: Fourth SAS-connected Expansion Chassis Only: Xsan (Data Only) configuration script (Apple KB)

This article contains a script used to configure Promise VTrak SAS-connected Expansion Chassis for Xsan. This script is used in the event that a Promise VTrak RAID Controller has already been configured for use with Xsan, and that an Expansion Chassis is being connected to the already-configured RAID Controller.

Read more: https://support.apple.com/en-us/HT201934

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Troubleshooting Xsan volume failover issues (Apple KB)

Learn about troubleshooting Xsan volume failover issues.


Read more: https://support.apple.com/en-us/HT201867

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Using QLogic switches with Apple Fibre Channel Cards (Apple KB)

Learn how to use QLogic switches with Apple Fibre Channel Cards.


Read more: https://support.apple.com/en-us/HT201498

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Xsan: Avoid using native extended attributes with StorNext clients (Apple KB)

If you connect StorNext clients to an Xsan volume, avoid enabling native extended attributes. StorNext clients may not preserve extended attributes when copying or moving files on the SAN volume.

Read more: https://support.apple.com/en-us/HT200305

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Xsan: Inconsistent or missing name server records could result in unexpected Xsan Admin behavior (Apple KB)

Xsan Admin and the file system manager (fsm) for Xsan may exhibit unexpected behaviors such as: Being unable to reach some clients; commands to unmount volumes, add clients, or remove clients take an unexpectedly long period of time; status updates take longer than expected before allowing further user control.

Read more: https://support.apple.com/en-us/HT200274

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Xsan: Available free space incorrect on heavily fragmented volumes (Apple KB)

On an Xsan volume with heavy free space fragmentation, the available free space may be less than expected.

Read more: https://support.apple.com/en-us/HT200267

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About the Xsan 2.2.2 Filesystem Update (Apple KB)

This article describes the Xsan 2.2.2 Filesystem Update.

Read more: https://support.apple.com/en-us/HT200245

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About the Xsan 2.2.1 Filesystem Update (Apple KB)

This article describes the Xsan 2.2.1 Filesystem Update.

Read more: https://support.apple.com/en-us/HT200242

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