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6. Enter a capacity number in Gigabytes as the share
Quota
.
7. Enter a capacity number in Gigabytes as the
Reserved
capacity which is actually
allocated space claimed from the storage volume.
8. You can click on the
Advanced
tab to open the advanced option menu. Here you can
select to enable the
Synchronized
option as
Standard
or
Always
. The
Sync
option
indicates whether the Folder Group will be synchronized by the system's synchronous
requests. Because of the system's copy-on-write characteristics, the synchronization
dos not consume system resources.
9. When done, click on the Create button.
NOTE:
1. The 4600U/T series does not support Dedup and Copy functions.
2. Deduplication is the process of eliminating duplicate copies of data. Dedup is generally
either file-level, block-level, or byte-level. Chunks of data -- files, blocks, or byte ranges --
are checksummed using some hash function that uniquely identifies data with very high
probability.
Chunks of data are remembered in a table of some sort that maps the data's checksum
to its storage location and reference count. When you store another copy of existing data,
instead of allocating new space on disk, the dedup code just increments the reference
count on the existing data. When data is highly replicated, which is typical of backup
servers, virtual machine images, and source code repositories, deduplication can reduce
space consumption not just by percentages, but by multiples.
