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2.5. Fibre Channel Storage Devices
Table 2.3, “Fibre Channel Storage Device Requirements” shows requirements for Fibre Channel devices that are to be connected to a GFS cluster.
| Requirement | Description | |||||
|---|---|---|---|---|---|---|
| Device Type |
| |||||
| Size |
GFS is based on a 64-bit architecture, which can theoretically accommodate an 8 EB file system. However, the current supported maximum size of a GFS file system is 25 TB. If your system requires GFS file systems larger than 25 TB, contact your Red Hat service representative.
When determining the size of your file system, you should consider your recovery needs. Running the
fsck command on the file system can take a long time and consume a large amount of memory. Additionally, in the event of a disk or disk-subsytem failure, recovery time is limited by the speed of your backup media.
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