U320 SCSI Removable Disk Modules

Woah there, buddy.
Try again. You ain't making U320 drives hotswappable unless they're SCA.

Technically, not even SCA is really "hotswap." It's hotswap in the sense that you can swap drives when they've got power and are members of the chain, but if you just yank a running drive, you're going to lose data. Your controller still has to understand the difference between a living drive and a failing or failed drive (this is handled by the drives and controller themselves) and has to actually support hot add or hot rescan.
Want to see why? Go find a disposable device, and try hotplugging it on your SCSI chain, including power. DISCLAIMER: I take absolutely no responsibility for what happens when you do this - especially the part where you ruin the expensive cables and blow up the device you just tried to hotplug.

What you have there? That's only going to let you take drives out easily. You will damage a drive if you pull it hot, period. If you want actual hotswap, you will need to replace all your drives with SCA (80 pin) and use a backplane such as:
http://www.enhance-tech.com/products/multidrive/New_StorPack.htm
 
You would need a hot plug cage for your SCA drives and the associated sleds and/or rails needed for inserting the drives into the cage. The drives you have are already SCA so you are fine there. Also for hot plugging you will probably need a SCSI RAID controller. I could be wrong on that part though, but I don't think regular SCSI cards would recognize drives being pulled or installed while running.

No SATA and SAS are not directly compatable with SCSI nor are there any adaptors that I am aware of to make one able to work on the others controller. Even SATA and SAS are only compatable in one direction, SATA can work on an SAS controller or connection but SAS cannot be used on a SATA controller.
 
Thanks MixMan.

And again; see the link I posted for SCA drives. The 'caddy' you posted is a caddy, not a backplane. It does not handle hotplug. End of story. The link I posted is to Enhance's backplane line, which I personally use. I'm not absolutely thrilled with their trays, but I have no complaints about the backplane itself. (Unlike Chenbro who needs to rot in hell for using female connectors on their backplanes.)
 
AreEss said:
Thanks MixMan.

And again; see the link I posted for SCA drives. The 'caddy' you posted is a caddy, not a backplane. It does not handle hotplug. End of story. The link I posted is to Enhance's backplane line, which I personally use. I'm not absolutely thrilled with their trays, but I have no complaints about the backplane itself. (Unlike Chenbro who needs to rot in hell for using female connectors on their backplanes.)
Click to expand...

Ahh got it. I thought you could hotswap using a caddy, reason I posted this is that I got a Lian Li PC-343B http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=204&products_id=20821

and it has 18 5.25" External bays. I guest im just looking for a caddy then, not a backplane. I'm only using 4 SCSI disk, no need to make them hot swappable....right?
 
This is a good one that I've used before. These rack include the drive caddy's, cage, and backplane. Just need a SCSI card or preferably a SCSI RAID card.

http://www.supermicro.com/products/accessories/mobilerack/CSE-M35S.cfm

I bought an LSI RAID controller to run it on eBay. Got the rack from Newegg

http://www.newegg.com/Product/Product.aspx?Item=N82E16817121403

They have a 6 bay Intel one here for the same price...

http://www.newegg.com/Product/Product.aspx?Item=N82E16816117035

These will connect to a regular SCSI card - just not sure how it would react to a drive being hotplugged. Probably would be best to shut down before pulling a drive if it's not connected to a hardware RAID controller.
 
MixManSC said:
This is a good one that I've used before. These rack include the drive caddy's, cage, and backplane. Just need a SCSI card or preferably a SCSI RAID card.

http://www.supermicro.com/products/accessories/mobilerack/CSE-M35S.cfm

I bought an LSI RAID controller to run it on eBay. Got the rack from Newegg

http://www.newegg.com/Product/Product.aspx?Item=N82E16817121403

They have a 6 bay Intel one here for the same price...

http://www.newegg.com/Product/Product.aspx?Item=N82E16816117035

These will connect to a regular SCSI card - just not sure how it would react to a drive being hotplugged. Probably would be best to shut down before pulling a drive if it's not connected to a hardware RAID controller.
Click to expand...

Cool I'll check that out. Thanks
 
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