Mapped drive only showing capacity of one drive in JBOD

[ValkyrieWombat]

I have two 1.5TB formatted ext2 JBOD. They show up in disk management as:

1 NAS-HDDB Seagate ext2 1405473 100% free
2. HDDA Seagate ext2 1408337 100% free

However after mapping the NAS as a drive in Windows Explorer the properties only show 1.27 TB available - so a whole drive of storage is missing.

Is something wrong? How do I verify that the storage on both drives is available?

If all is well, how does is the JBOD storage allocated - e.g. does it fill one drive first and then fill the other?

I plan to use this as a backup drive, so I would rather have more space than the redundancy of RAID 1. Similarly the fact that a single drive failure in RAID 0 kills the data on both disks makes the speed benefit unattractive (same for RAID linear).

Can someone give me some guidance here?

[Seravy]

Not too sure why it isn't showing up. If you know much about Linux, i would do the steps mentioned in the 'enable telnet' thread to have a look at the actual disk size that has been mounted. That is the only way I can think of verifying it.

In regards to JBOD, While it will be implementation specific, but it ususally just stores the fat table on one disk which covers the space for both and then sequentially writes to it as it fills up. This is much like a normal hdd would of course so if there is space from deleted files it may put it in multiple fragments etc. As far as i know it just pretends it is one disk, without the cost of a raid controller.

For the recovery, I believe if one disk dies than both are quite dead much like raid 0. Because most files would be sequential you could probably use a utility to scan for files on the disk to recover the disk that is still 'alive' but it would be very messy. It is for this reason i kept them as two separate disks and set up a backup schedule to copy parts of one disk to the other that i wanted to really backup.

[maddin194]

i have the same problem. see my thread or read this:

you can finde your second hard disk at
\\ip_of_your_server\HDDB

[BadIntentions]

Visit Settings -> Disk Management and verify that the raid array is configured as 'Raid Linear.' If it shows 2 drives, then the drives are not configured as a raid array.



If it doesnt look like that; then follow my guide to making raid work. YOU DATA WILL BE DELETED WHEN FOLLOWING THE GUIDE.
Raid on Valkyrie.

[ljunker1]

Under windows 7, in JBOD, not RAID. How did you map your drive(s) without Shares.

I can map the drive and a share of course under windows.
Example \\server_ address\share

But can't figure out how to map to just the root directory of each hard drive
I assumed that

\\server_address\$

would work but it doesn't.

Any ideas

[BadIntentions]

Under windows 7, in JBOD, not RAID. How did you map your drive(s) without Shares.

I can map the drive and a share of course under windows.
Example \\server_ address\share

But can't figure out how to map to just the root directory of each hard drive
I assumed that

\\server_address\$

would work but it doesn't.

Any ideas

This question would have been better asked in a new post, since this one is so old.

I'm not sure what you are trying to do here. If you are using JBOD as described in common usage (the Valkyrie calls this linear mode), then you cannot access the individual drive shares, as there is no longer an individual drive. You can browse the shares by visiting \\server_address\ like any standard windows network share. If you have 2 separate drives in the system (JBOD in the ZFS sense), then you will be able to access HDDA and HDDB shares, for example \\server_address\HDDA