Up to 256 Terabytes of Direct Attached Storage available
from your existing server!
What is the simplest and most cost effective way to add TERABYTES of storage to
your existing server or Storage Area Network? The answer is Serial Attached SCSI
(SAS) Direct Attached Storage (DAS) - SAS DAS!
SAS is the next generation interconnect for enterprise hard drives, replacing the
old parallel SCSI technology. With SAS External RAID Controllers, you can address
up to 256 SAS or SATA drives from a single controller. This is achieved
by connecting multiple JBOD ("Just a bunch of disks") storage boxes to your SAS
RAID Controller. Because each JBOD box contains a SAS "expander" (but no
motherboard), a single 4-port 12Gbps SAS cable can carry signalling for a huge number
of drives - the signal is "expanded", allowing multiple JBODs to be daisy chained
to a single controller.
It's way cheaper than Fiber Channel. It's way simpler than NAS (Network Attached
Storage), since you don't require any motherboards, processors, network controllers
or memory in each JBOD. All each storage box is, is what it says it is, Just a Bunch
Here's all you need to do, to add terabytes of storage to your existing server infrastructure:
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- Open up your existing server, and find a suitable PCI-X or PCI-Express slot
your new External SAS RAID Controller in the slot
- Close your server
- Connect your new DAS JBOD unit to your existing server with the 12Gbps SAS cable
(you can also daisy-chain additional DAS JBODs onto existing JBOD units, powering
up to 256 SAS or SATA drives)
- Power up the server and your new DAS JBOD unit.
- Install the External SAS RAID Controller drivers and storage software utility on
your server OS.
- Configure your RAID in the storage software utility, and mount the RAID volumes
in your OS.
- You will then see your drives as if they were directly attached to your server's
RAID controller. That's because they are! No tricks, just direct attached storage!
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