"markm75" <markm75c@msn.com> wrote in
news:1169585799.172845.211910@l53g2000cwa.googlegroups.com:

>
> markm75 wrote: 
&[vbcol=seagreen] 
E[vbcol=seagreen] 
E[vbcol=seagreen] 
>
> Also forgot.. I'm not sure what SAS refers to at this point.. the
> controller says it has a mini sas connector.. I'm assuming this is
> Serial Attached Storage.. Is this type of HD supposed to replace
> SATA's eventually?  I dont see much bigger capacity than 146gb out
> there, not to mention the homebuilt server just says it has mini sas
> ability.. the drive bays are SATA, not sure what benefit this would
> be...

SAS = Serial Attached Scsi.  Analogous to SATA = Serial ATA
SAS connector are similar to SATA connectors but, mercifully, not the
same. SCSI disks generally have lower capacity (but higher speed) than
ATA disks.

NAS = Network Attached Storage.  Essentially a file server.
SAN = Storage Area Network.  A SAN is used to attach storage devices to
servers.  Traditionally uses FiberChannel for network, but now we can
use iSCSI which provides SCSI protocol over TCP/IP on Ethernet.
Essentially, storage devices on SANs look like disk or tape drives to
the servers. Very different from a NAS. Some NAS devices these days also
provide SAN LUNs in addition to serving files.

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A L B E R T A         Alfred Falk               falk@arc.ab.ca
R E S E A R C H         Information Systems Dept   (780)450-5185
C O U N C I L         250 Karl Clark Road
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http://www.arc.ab.ca/   T6N 1E4
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