Infrant Technologies ReadyNAS Duo, Руководство пользователя

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Note
Changes that occupy space in the snapshot reserved space include new file
creation, modifications, and deletions; for instance, any time you delete a
1MB file, the change caused by the deletion will use up 1MB of reserved
space.
When the snapshot does become invalidated, an email alert will be sent and the status will be
reflected in the Snapshot tab. The snapshot is no longer usable at this stage.
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R E S I Z I N G S N A P S H O T S P A C E
If you are constantly getting snapshot invalidation alerts, you may want to either increase the
frequency of the snapshot, or consider increasing the snapshot reserved space. To do this, or to
eliminate your existing snapshot space (thus increasing your usable volume space), you can specify
the desired snapshot space in the Snapshot Space box. Simply select a value from the selection box
and click
Save . Your snapshot space will be limited to approximately 100GB.
The process of resizing the snapshot space can take awhile depending on your data volume size and
the number of files in your volume. Expanding the snapshot space will reduce your data volume
size, and reducing the snapshot space will expand it.
Note
Due to the nature of how snapshots work, you will encounter a drop in
write performance when a snapshot is active. If your environment requires
the highest throughput in performance, the active snapshot should be
deleted, or you should set a limit on how long the snapshot should be live.
USB Storage
The USB tab displays the USB disk and flash devices connected to the ReadyNAS, and offers
various options for these devices. A flash device will appear as USB_FLASH_1 and a disk device
will appear as USB_HDD_1. If you have multiple devices, they will appear appended by an
increasing device number, i.e. USB_HDD_2. If the device contains multiple partitions, the
partitions will be listed beneath the main device entry.
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