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HDD question: 32mb vs 16mb cache?

post #1 of 13
Thread Starter 
What's the difference? How much performance boost is their really?

What I do: Listen to Music, watch tons of tv stored to my HDD's, edit photos.

Should I save my 10$, or go with with the 32mb cache.
I was looking into buying 2x 250gb 32mb sata drives
or maybe 2x 320 gb 16mb sata drives. is the seagate 7200.11's king?
or is there something faster for the same price?

thanks for any INFO you give, your REPutation will surely increase from the help!
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post #2 of 13
7200.11 is the new hit. 7200.10 kicked arse, 7200.11 kicks, extracts crap from and sanitizes arse.

http://techreport.com/articles.x/13440

Read this, compare the charts. There is significant improvement. Higher average read speed than a raptor means epic win in all situations, and Seagate can't be beat for warranty.
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by max302 View Post
7200.11 is the new hit. 7200.10 kicked arse, 7200.11 kicks, extracts crap from and sanitizes arse.
.
Quote:
Originally Posted by Zee Article
With 250GB platters, 32MB of cache, and a 7,200-RPM spindle speed, the Barracuda 7200.11 should be the fastest high-capacity drive on the market. Except that it isn't. Results from our performance testing are mixed at best, with the new 'cuda excelling in some tests but faltering badly in others
God i loved my 7200.10's but had to sell them for finical planning reasons. so these are gonna replace them, but HOW MUCH REAL PERFORMANCE from the 32mbs would i see over the 16mbs? from the charts i see not much :O just lower power consumption

edit: isee now that all the 7200.11's are 32 mb, so i think ill go with that
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post #4 of 13
Read the whole thing... the article has some 15 pages.

Burst speed, sustained read and write, it's kicks a raptors ass a gazillion times, except seek time because of spindle speed.

http://techreport.com/articles.x/13440/13

Its the scrolling menu at the bottom.
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post #5 of 13
Thread Starter 
Quote:
Originally Posted by max302 View Post
Read the whole thing... the article has some 15 pages.

Burst speed, sustained read and write, it's kicks a raptors ass a gazillion times, except seek time because of spindle speed.

http://techreport.com/articles.x/13440/13

Its the scrolling menu at the bottom.
haha, yeah I read it, sorry i read fast. and i know they kick raptors ass when raided, but like i said i can't see a performance increase from the 1TB 32mb vs the 750 16mb caches. my question is primarily about cache, there's no doubt in my mind im getting 7200.11's!
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post #6 of 13
The reports shows mixed results. For desktop use, I doubt if you will see any performance difference between 16Mb and 32Mb. The extra 32Mb does come in handy during transactional type applications like database queries.

I have the Seagate 7200.11 - 1TB model. You are still paying a premium for 1TB capacity drives at this time. I only bought it because it was on sale at Fry's for $235 for the retail version. Newegg has it for $250 for the OEM model. If you are looking for better performance around the same price, I would try the new 640GB Western Digitals using 2 320GB platters. I would put two of them into RAID 0. They are $130 for the OEM versions at Newegg. 2 will cost $$260 and you will get 1.28TB of capacity.

Tae
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by Tae View Post
The reports shows mixed results. For desktop use, I doubt if you will see any performance difference between 16Mb and 32Mb. The extra 32Mb does come in handy during transactional type applications like database queries.

I have the Seagate 7200.11 - 1TB model. You are still paying a premium for 1TB capacity drives at this time. I only bought it because it was on sale at Fry's for $235 for the retail version. Newegg has it for $250 for the OEM model. If you are looking for better performance around the same price, I would try the new 640GB Western Digitals using 2 320GB platters. I would put two of them into RAID 0. They are $130 for the OEM versions at Newegg. 2 will cost $$260 and you will get 1.28TB of capacity.

Tae
good lookin out. ill forgot about frys! im in no rush to buy these HDD's, i just want to buy them so i can raid them when i install vista, but money is a bit snug so ill wait a week or two for sales! i dont like WD, every WD i've owned, or used in a tech shop has failed on me. no seagate ever bailed on me, so i got this psychosomatic attachment to the seagates. thanks for the info! reps+
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post #8 of 13
The larger cache is not going to do much of anything in general use, or for read performance. It will however be of noticeable benifit if you do lots of writes to the drive.

Unless you have a pressing need for RAID 0, I'd do without it. The performance difference is there, but if you've got a lot of stuff you'd like to keep, RAID 0 is a risky proposition. I use RAID 0 on the first 200GB of each of my drives (which are esentially 250GB 7200.11s with 16MB cache), with the remander setup in RAID 1 for a backup partition. I do not have much in the way of music, images, or video that needs to be backed up however. I did, I would not be using a RAID 0.
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post #9 of 13
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Quote:
Originally Posted by Blameless View Post
The larger cache is not going to do much of anything in general use, or for read performance. It will however be of noticeable benifit if you do lots of writes to the drive.

Unless you have a pressing need for RAID 0, I'd do without it. The performance difference is there, but if you've got a lot of stuff you'd like to keep, RAID 0 is a risky proposition. I use RAID 0 on the first 200GB of each of my drives (which are esentially 250GB 7200.11s with 16MB cache), with the remander setup in RAID 1 for a backup partition. I do not have much in the way of music, images, or video that needs to be backed up however. I did, I would not be using a RAID 0.
oh, i'll have a back up drive for important pics/documents. this will basically be a media serer for the many laptops that are used in my home :], but i had RAID 0 with my previous seagate drives and it never failed, even through a power surge that killed my PSU, motherboard, and graphics card.
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post #10 of 13
I had one of my seagate 7200.10s drives die after 3 months before I had my raid going. If I was running RAID then, I would have lost the array.

Also, earlier today, I was testing new memory settings, got a blue screen, and lost my entire RAID array, including the RAID 1 (for the record, I did NOT have write back caching enabled). Fortunately the drives them selves still work fine, and I have recovery software + a windows PE disc, so I was able to get my critical data back.

Still, I've been working on this for 7 hours straight and have just finished getting windows back in there. Having to scan, recover, wipe, format, transfer, wipe other drive, format again, and finally reinstall windows is not my idea of fun.

I am no longer using RAID, and I won't in the future unless it's on a non-integrated controler and I am not using it for my boot/OS drive. The real world performance difference was small enough that I can barely notice it anyway.

Point is, anything can happen, and RAID 0 is inherently fragile. Even RAID 1 is rather poor on intel's integrated controler. Words cannot describe how pissed I was when I went into the RAID config to rebuild my RAID 1 and it tells me I have to do so from with in the OS which was on the RAID 0 it just shredded.

The same type of memory error + blue screen would have likely done nothing to a non-RAID setup.
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