144GB Raptor?

[aidanjt]

a Promise 30378 (or marketed as Fastrack S150 TX2+). Remember, NCQ is the dumbed down version of TCQ.. I don't think a 40mb/s difference is slight controller deviation. Its well documented in every serious hardware site that command queing (especially TCQ) has virtually no benifit to desktop users, but is suited for heavily loaded servers.

[LaughingJon]

was the original question because they had seen a new raptor drive being created somewhere or just a random comment?

i currently own 1 x 74gig raptor and am thinking about upgrading to dual raptors and use them in raid. Am i likely to encounter problems with this as i didnt buy them both at the same time or should i be ok?

cheers
Jon

[herulach]

was the original question because they had seen a new raptor drive being created somewhere or just a random comment?

i currently own 1 x 74gig raptor and am thinking about upgrading to dual raptors and use them in raid. Am i likely to encounter problems with this as i didnt buy them both at the same time or should i be ok?

cheers
Jon

Youll be fine, in fact its generally good practice to get drives in a raid at different times (to reduce the chance of data loss from both drives going, although it makes no difference for raid 0) I'd personally advise you to just buy a Maxline 3as the performance will be as good for everything that really matters, and youll have far more storage space.

[aidanjt]

herulach, one question, does your disk output 130Mb/s?

[unrealuniverse]

Guess, i think its two raptors in raid 0

[LaughingJon]

Youll be fine, in fact its generally good practice to get drives in a raid at different times (to reduce the chance of data loss from both drives going, although it makes no difference for raid 0) I'd personally advise you to just buy a Maxline 3as the performance will be as good for everything that really matters, and youll have far more storage space.

cool cheers.. as for storage space i have a few other PCs which deal with storage and they have multiple hundreds of Gigs free so not really worried about that for now..

[herulach]

herulach, one question, does your disk output 130Mb/s?

I dunno, ive never tried any tests. reccomend one and ill tell you. Although again id point out that transfer rate is not the be all and end all of disk performance, as youll only ever see it during sustained large file transfer, which imo isnt enough to justify the huge price/gb for raptors. I also dont see how its relevant to the discussion since its neither a raptor or a maxline 3.

[aidanjt]

no, but smallish file reads benifit greatly from short latency, which raptors have in abundence.. 7,200rpm drives could only dream of achiving access times that raptors produce, which makes them outstanding system disks.

[herulach]

no, but smallish file reads benifit greatly from short latency, which raptors have in abundence.. 7,200rpm drives could only dream of achiving access times that raptors produce, which makes them outstanding system disks.

Yes, and im not disputing that, what i am disputing is the fact that everyone seems to think they are the be all and end all of performance, when in actuality they arent. They are good yes, but they certainly arent the best all round drive. Would i have one as a system drive if i could afford it? Yes, would i bother with raid or go without a sensible amount of file storage for it? Definately not.

[aidanjt]

certainly storage is a higher nessecity for folks who can't aford the best of both worlds, I have a nice server for my files so that was never a problem for me

[herulach]

I dunno, if you wanna get into best then we can start talking about the scsi set up ive got in the fileserver (admittedly not brand new quite old in fact, but i bet itll still knock spots off raptors). Youll note that ive never said im anti raptor, i reccomended the guy get a maxline because he would see very little difference in performance by raiding a second raptor, and he appeared to be wanting more storage space.

AS an aside, raptors clearly arent the best of both worlds (assuming you mean performance/space/value tradeoff) the big newer 16mb cache drives are.

Anyway, were way OT now so we should prob take it to pm if you want to continue debating What would you reccomend for a disk bench tool by the way? (Something that measures single user performance decently)

[Shmee150]

Wait a second. If money was no object, and you wanted a few drives, say 3 or 4, what would you have????

(I have my 2 74gig Raptors and a 400gig Hitachi Deskstar - would of course be a 500GB one if I was buying now, not 2 months ago)

ShMeE

[Rave]

Remember, NCQ is the dumbed down version of TCQ.

Yeah? I heard the opposite. Like here for example:

http://forums.storagereview.net/inde...ic=15904&st=25

Also, I also thought that your concluding that TCQ isn't helpful on the basis of a comparison on two different controllers was unscientific. I have often seen (in reviews, which I read a lot of) drastic variations in performance between different controllers, especially in synthetic benchmarks. If the Promise controller was PCI based, there's a big bottleneck right there.

[herulach]

Wait a second. If money was no object, and you wanted a few drives, say 3 or 4, what would you have????

(I have my 2 74gig Raptors and a 400gig Hitachi Deskstar - would of course be a 500GB one if I was buying now, not 2 months ago)

ShMeE

If money was no object? Adaptec 2 channel 320 SCSI controller, w/128mb cache. Atlas 15K system drives, atlas 10K storage.

If were talking sata? 7k400s/Maxline 3s for storage, 74gig raptor system drive. Then i could actually compare them and find out which is best.

[Shmee150]

lol, i meant if money was slightly the object

How much do thoses things cost each then?

ShMeE

[herulach]

What atlases? A 74 gig 15k rpm is around 250, a 10k around 150.