Windows 10: Raid 0 Vs JBOD (Just a Bunch of Disks) (Hardware)

Hi there

Was wondering if RAID 0 (hardware) was faster than JBOD (just a Bunch of Disks). - Some of these 2 / 4 bay HDD devices have hardware RAID / JBOD / Individual HDD settings.

Note RAID 0 (speed) --not interested in RAID 1 / 10 which these boxes do --I've enough backup if an HDD in the array goes bonkers !!!.

Anybody got any thoughts on this -- I think the JBOD idea is a bit like Ms Storage spaces - which in theory should be OK as you can use different size HDD's but I read that people lose data with it etc -- also the HDD bays do this with their own hardware and can connect to computer either via SATA or USB3 - SATA is the best of course but a decent USB 3 (or better USB3.1) still would give decent transfer speed.

Most of these boxes have a switch to set to RAID0 / RAID 1 / RAID 10 (sometimes) JBOD or None - all done with a hardware card in the device.

Cheers
jimbo

:)

 

Blue Screen of Death when formating a RAID 5 Partition

All disk work as JBOD, the problem is when I join them on RAID 5.

 

Understanding WP7 Storage and Options

Ok cool, because its not RAID 0, and it is JBOD. The following link explains how the disk is used:

The Windows Phone 7 Review

 

JBOD will create standard folders on each drive just like your normal PC hard drives. Say you have a 3 TB disk and a 2 TB disk for example. You create a folder called Movies on the 3 TB disk. The NAS will display the Movies folder, it will have 3 TB space available, and everything you put in the Movies folder will go onto that hard drive.

Create a Documents folder on the 2 TB drive, it will have 2 TB space available and everything you put in Documents will go onto that hard drive.

JBOD is slower than Raid 0 because it is accessing only on drive at a time for each entire file. RAID 0 accesses both drives at the same time.

 

Unless you are running 10Gb Ethernet, your bottleneck is likely your network rather than the speed of your NAS device.

 

Hi there

If JBOD actually works as separate HDD's then why have ANOTHER setting for Discrete / individual drives !! what's the difference then.

I can see why RAID 0 is in theory faster especially with a bit of striping but why have two settings - 1 for JBOD and another for Individual Disks.

Something is wrong here I'm sure.

I'm mainly using NAS for Movies / Audio streaming so HDD speed isn't consideration there -- however for running VM's etc then speed of HDD's is important - even over 1 Gb LAN - however these boxes can be locally attached to different PC's so the LAN speed is irrelevant for the stuff I want to use them for.

The documentation is in Chinese (no English) and it definitely has text for each of the settings - can't understand Chinese but from the tech spec seems that there is a difference between RAID/JBOD/Individual HDD's.

Cheers
jimbo

 

My NAS doesn't have both JBOD and Individual Disk settings, it just has JBOD and RAID. It is currently in JBOD mode. This is what I see on my NAS web interface:





It is obviously treating both disks separately, Volume_1 and Volume_2. Each has their own folders, each has their own New Folder icon. When I access the NAS in Windows I don't see Volume_1 and Volume_2, I only see the shared folders on one server:





Also, what is interesting is that in my Server1 folder, I cannot create new folders from Windows. I have to go to the web interface to create new folders. This is because the NAS would not onto which disk to create the new folder from Windows. If I go into one of the folders, I can create new subfolders - because then the NAS knows which disk to create it on.

I suspect your JBOD setting would work the same. I also suspect your individual disk settings would probably present only two folders in a Windows file manager screen: Volume_1 and Volume_2 or Disk_1 and Disk_2, then under those would be the subfolders you create on each disk.

Another difference, it would seem, would be folder permissions. On my NAS, under JBOD setting, I control which users have access to each folder on the disk. It would seem like under individual disk setting (if my NAS had one), I would only control which users have access to each entire disk.

I have just purchased a second NAS and 2 x 3TB hard drives and I am in the process of copying files because I won't both to be set up as Raid 1 so I have built in redundancy.

 

Hi,

Isn't it so that JBOD allows for spanning of disks/volumes whereas Individual Disks would not ?

Cheers, *Wink

 

Yes, you are correct. I just formatted disks again in my NAS and that was what the help screens stated.