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 A N D S Y S T E M I N T E G R A T I O N G U I D E
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Section 3 Menu Functions
RO
Read Only, if it is turned on the LUN will be visible as a write protected disk. To switch the RO option
when it's disabled, you must first remove the volume from the target and then add it again setting the
flag as desired. Target volumes and snapshots are not read only (RO -unchecked) by default.
WB
Write-back cache. This functionality improves performance of data write. Write is acknowledged as
completed as soon as the data is stored in the disk cache. In later time the disk cache commits the
write to disk.
If
RO
and
WB
are disabled (
RO
and
WB
- unchecked) then Write-through cache is used by default.
This means that writes are not stored in cache. Instead, all writes are acknowledged after they are
committed to disk
Function: CHAP user target access fig 3.2.4b
Add CHAP users that are granted access to the Target Server.
If you enable CHAP user access authentication but do not select any users to have access, then
nobody will have access to the Target Server. Standard keyboard shortcut functions apply.
Function: Target IP access fig 3.2.4c
You can assign network classes or specify individual IP addresses that are permitted or denied to
access the target. Entries should be delimited by commas.
When no entries are present in Denied access or Allowed access fields everyone is permitted to access
the target. Specifying at least one entry in Allowed access field excludes all the clients that do not
match it from accessing the target.
When you specify at least one entry in Denied access field, every CHAP user or CHAP users from
network class address are denied form accessing the target.
When you specify any IP address in Allowed access field, CHAP users form that address are allowed to
access the target even if the same address has been specified in Denied access field.
If you enter only Allowed access field then Denied access field will be automatically entered with
0.0.0.0/0 entry.
Please note that already active sessions to the target will persist regardless of the newly applied
settings. You can ensure that the settings are forced immediately after you apply them by going to
maintenance->shutdown->connection reset and resetting the connections manually. Keep in mind that
all the unsaved client data might be lost.
There is possibility of entering network class address in two ways:
192.168.2.0/255.255.255.0 - normal form,
192.168.2.0/24 - short form.
When you enter network class address in normal form, it will be automatically converted to short form.
