Function: Snapshot Definition Fig 3.2.1C - Rorke Data Galaxy LX5 Series Configuration And System Integration Manual

Table of Contents

G A L A X Y N A S L X 5

C O N F I G U R A T I O N

they cannot be used for volume replication

a share created on a WORM volume cannot be used as a destination share in a data replication

process

a share created on a WORM volume cannot be published via NFS and cannot be accessed via HTTP

(HTTP share access function)

a share created on a WORM volume cannot be used as an antivirus quarantine share

a share created on a WORM volume cannot host a local backup database

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Note: Maximal NAS (N), iSCSI (I) and Fibre Channel (FC) volume size (with replication) is

limited to 4193120MB (megabytes).

If your volume (including volume replication) fails to be created, increase the Vmalloc

This can be done via the Hardware Console Tools (ALT+CTRL+W) -> Tuning

size.

Initialize

This option is available when creating an iSCSI (I) or Fibre Channel (FC) volume. It is here for security

reasons. The volume will be initialized after the creation process. There can be only one volume being

initialized at any one time. If there are more volumes to be initialized, a Waiting indicator will appear

near the one(s) enqueued. Using the button next to the indicator you can send the initializing volume to

the back of the initialization queue. Every volume that is waiting for initialization in queue can also be

sent to the back of queue.

Blocksize

This option is available when creating a Fibre Channel volume (FC). Blocksize indicates the nominal

size, expressed in bytes, of a block of data. Possible values:

512 bytes

1024 bytes

2048 bytes

4098 bytes (default)

Blocksize has an influence on performance and space management. The greater the value the better

the performance, but data might take up more space. This option is unavailable when modifying a FC

volume or FC snapshots.

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Note: When adding each new unit there will be 4 GB space reserved for Reserved Pool (if a

Reserved Pool has not been already created). Additionally, 1 GB of space is

system use. Reserved Pool creates a small amount of storage

for system features. This prevents users from

would inhibit the use of certain features regarding Replication that is needed to draw upon to perform

properly. A

technical recommendation to any storage solution is to reserve a small amount free

space from the Volume, unless you are fully aware that you will not be needed utilizing

feature in the future or for testing reasons.