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Clarification about NAS

T

tdx

Limp Gawd
Joined
Jul 3, 2005
Messages
154
Hi everyone,

I have searched the forum about NAS-related threads, but I'm still a little confused as to what they can and cannot do.

1. Can a NAS storage be made available remotely (from another PC connected to the interent) when the local PC is turned off?
2. How do NAS and RAID coexist? Do you RAID a NAS outside of the PC so it will appear as one unified volume, or do you connect the NAS enclosure through a RAID Port multiplier inside the PC? In other words, is the RAID-ing of the NAS doen internally or externally?
3. Can a NAS be used to share other hardware, for example optical drives and media readers to multiple PCs on the network?
4. Is a NAS attached to Gigabit Etherenet really slower compared to a hard drive directly attached to an internal SATA port on the mobo?
5. Finally, and I know this will sound weird, are there any solutions for mounting a multiple-drive NAS inside the main computer case, instead of having it in an extrernal enclosure.

Please don't flame me for my newbie-ishness.
 
tdx said:
Hi everyone,

I have searched the forum about NAS-related threads, but I'm still a little confused as to what they can and cannot do.

1. Can a NAS storage be made available remotely (from another PC connected to the internet) when the local PC is turned off?
Click to expand...

Depends on the NAS appliance and your local network setup.
tdx said:
2. How do NAS and RAID coexist? Do you RAID a NAS outside of the PC so it will appear as one unified volume, or do you connect the NAS enclosure through a RAID Port multiplier inside the PC? In other words, is the RAID-ing of the NAS doen internally or externally?
Click to expand...
NAS = Network attached storage. Depending on what appliance you buy, it would have internal RAID support or not. I do not think that Windows supports RAID-ing network volumes, hence it'd be rather hard to RAID across multiple NASes.
tdx said:
3. Can a NAS be used to share other hardware, for example optical drives and media readers to multiple PCs on the network?
Click to expand...
Depends on the NAS appliance you use. Depending on the method of sharing, CD-ROM drives would probably appear as read-only network volumes.
tdx said:
4. Is a NAS attached to Gigabit Etherenet really slower compared to a hard drive directly attached to an internal SATA port on the mobo?
Click to expand...
"slower" in what respect. Considering that I assume most NASes work on an IP-layer level, like windows File-sharing, there is quite a bit of inherent overhead in terms of packet-izing the data and unpacking it. Also, there may be an access time penalty, since it is likely that the tansport of data to/ from a NAS is via TCP, which requires a connection to be established.
Bottom line: There should be measurable difference between the two options. I do not know if you can feel it though. If your GbE does not support Jumbo Frames and you have a fast disk, most likely the difference is going to be great(er).
tdx said:
5. Finally, and I know this will sound weird, are there any solutions for mounting a multiple-drive NAS inside the main computer case, instead of having it in an extrernal enclosure.
Click to expand...
I am sure that you could "mod" your case to fit a NAS inside of it, but I am doubting that you will find an off-the-shelf solution for that.
 
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