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Forum Discussion
ISCSI and Volumes
I'm new to the Ultra4 and iSCSI and have a few questions. I hope someone will be kind enough to direct me
to the proper reference or explain a few things.
I am upgrading from a DUO to an Ultra4 and want to implement iSCSI. I have already created 5 shares in
my volume, which I think of as partitions. I am worried that creating an iSCSI target volume may
alter things and destroy my setup on shares.
I have several dialogues in FrontView that are not addressed in Netgear Documentation
Create ISCSI Drive
Target Name:
LUN:
LUN Description:
Capacity
CHAP Authentication
What do I set the capacity for the iSCSI volumes? Does it have to match the space that
is currently used or can it be set at the full volume size (which is 2TB)? or do I
create 5 iSCSI volumes with capacities that make a total of my VOLUME?
I have shares and they are not set on size limitation, so I don't know what to
put in the CAPACITY and I also don't know a thing about CHAP Authentication.
to the proper reference or explain a few things.
I am upgrading from a DUO to an Ultra4 and want to implement iSCSI. I have already created 5 shares in
my volume, which I think of as partitions. I am worried that creating an iSCSI target volume may
alter things and destroy my setup on shares.
I have several dialogues in FrontView that are not addressed in Netgear Documentation
Create ISCSI Drive
Target Name:
LUN:
LUN Description:
Capacity
CHAP Authentication
What do I set the capacity for the iSCSI volumes? Does it have to match the space that
is currently used or can it be set at the full volume size (which is 2TB)? or do I
create 5 iSCSI volumes with capacities that make a total of my VOLUME?
I have shares and they are not set on size limitation, so I don't know what to
put in the CAPACITY and I also don't know a thing about CHAP Authentication.
6 Replies
Replies have been turned off for this discussion
- iSCSI volumes can use up to the free space on your NAS. It has no effect on your share setup. You cannot make an iSCSI volume larger than the free space on your NAS. If you create a 500GB volume it will use up 500GB of your space regardless of how much is stored in it.
I'd recommend you set a target name, enter in a LUN description (if you like), choose the capacity you want for the target and leave CHAP authentication disabled. - Can I make an existing volume into an iSCSI device without losing data?
I was able to create a iSCSI volume, but all it did was create a new volume from
available free space. Access is much better with iSCSI, so I would like to have my
Ultra4 volumes (shares) show up as iSCSI devices. muddauber wrote: Can I make an existing volume into an iSCSI device without losing data?
No.- Ouch! So, I would have to migrate all my data off my Ultra, create iSCSI devices, and then install data back on those volumes, correct?
If so, I noticed when I created my single iSCSI device, it shows up like a local drive, but is not listed in my
NeatGear control panel. So how do I manage backup of volumes if I go this route. I don't want to lose all the
benefits of using frontview control panel and managing the shares, backup and also using XRAID if I want to expand. Is there a way to manage
all this once I move everything over to iSCSI devices? - Yes you would have to migrate your data off the Ultra.
The iSCSI targets are files on your X-RAID2 volume. So you can expand that as normal. Then deal with the iSCSI stuff after the volume has expanded.
You should see under Backup in Frontview the option to backup iSCSI targets. You shouldn't have the iSCSI target mounted when running a backup. I would suggest instead using software on the PC to backup the data on the target.
When you mount an iSCSI target on a PC it is treated as a local drive. You set permissions on your PC like you would for a local drive then share it across your network. You could install backup software to backup the data on the iSCSI target like you'd backup a local drive.
The network shares on the ReadyNAS are separate to iSCSI targets. Using network shares and iSCSI are very different ways of managing your data. - Thank you kindly for the clarification. The main reason I want iSCSI is because of the speed of directory reads with
frequent access. I had a ReadyNAS Duo and the access time and delays during directory reads/rereads were painful and aggravating.
So, I studied about iSCSI and have seen bettering indexing and speeds with that. However, since switching/upgrading
to the Ultra 4, the delays are not too bad using the standard NAS volumes.
Now that I am harmed with more information, I question if I would be seeing any noticeable benefits switching to iSCSI. Would I see significant gains?
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