VMware VSPHERE CLIENT 4.0 - UPGRADE GUIDE UPDATE 1 Manual do Utilizador Página 111

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Section 12 Storage Area Network SAN Storage Configuration
3BSE056141-510 F 111
SAN Storage Configuration
SAN servers typically consists of 12-24 hard disks. These are normally configured
as one or more RAID 5 (block-level striping with distributed parity) disk groups
with a number of disks set as hot spares or hot standby used as a failover
mechanism to provide reliability in System Configurations. The SAN server vendor
may have best practices for allocation of the storage.
When combining disks to create RAID arrays, a storage item is created which is
used to create virtual disks. These are the entities that become available as
datastores in ESX(i).
When formatting datastores, the file block size may need to be changed to
accommodate the largest file that is created in the datastore.
Always remember that the largest size for a datastore is 2TB - 512Bytes.
Figure 34. SAN Server Storage Configuration
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