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* Posts by LarryF

12 posts • joined 7 Dec 2012

Kryder's law craps out: Race to UBER-CHEAP STORAGE is OVER

LarryF

The HDD in your mirror is much larger than it appears

"To reach 20TB by 2020, the 500GB/platter drives will have to increase areal density 44 times in six years. It isn't going to happen."

Huh? to reach 20TB by 2020, areal density would need to double a little more than 5 times in the next 6 years. (.5TB / 1TB / 2TB / 4TB / 8TB /16TB), not 44 times. All right, this is not gonna happen either.

More likely that we'll 4 or 5 platter (or maybe 6 platter) 3.5" HDD's at 40TB by 2020, which only requires 2 generations of capacity doubling, as vendors put the HAMR down.

Larry @ NetApp

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Violin's arrays play in Concerto - but they can't hit the dedupe notes yet

LarryF

Huh?

I don't see anything on Violin's website that indicates the 7000 is a front-end cluster controller for 6200 arrays. Its simply shown as a dual-controller box with up to 4 storage shelves and up to 280TB. Is this some top secret project thats now not-so-secret?

Larry@NetApp

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NetApp gives its FAS range a 4 MILLION IOPS dose of spit'n'polish

LarryF

Post processing dedupe has its advantages

Post-process dedupe has a lot going for it, number one being that it doesn't get in the way of a CPU thats busy with server I/O requests. Number two - since you have more time to process hashes you can add data integrity checks to avoid hash collisions all together. And...if you schedule a dedupe run each night, the capacity overhead required is surprisingly small.

Larry@ NetApp

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LarryF

Re: Software

Agree with TheVogon - what would you replace RAID-DP with? Data Dispersal and Erasure Coding have their problems too. Nice thing about NetApp is that as soon as a drive hiccups, its data is automatically copied to a spare drive - avoiding any RAID rebuild time at all. Most drives die slowly, not suddenly. If your software is smart enough to detect this, you can use it to your advantage.

Larry@NetApp

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The future of storage is a horror show - just ignore the biz strategists

LarryF
Holmes

Everything is more complex Chris

Interesting perspective, but why pick storage as the complexity poster child? I remember when I could adjust the valves and points on my '63 VW bug, Then along came electronic ignition, fuel injection, and onboard computers. I didn't ask for any of those things and I surely can't work on my car anymore but I must admit despite this complexity cars seem to run a lot better and last a whole lot longer than they used to.

Yes storage was easy back when you had some bus & tag cables connected to a few disks on an IBM 360, but as I recall you were maxed out at 32 drives, or about 10GB. Then along came MS Office, Oracle, and oh yeah the interent and suddenly everything got more complicated.

Not sure I'd call it a horror show but its true storage complexity is part of keeping up with the pace of data growth and diversity, whether its in your data center or somebody else's in the cloud. So just as you need a good mechanic with sophisticated diagnostics to work on your car, you'll need a good IT storage architect to sort through all the options and design a proper data storage network.

Larry

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The numbers are in: EMC still ruling storage LIKE A BOSS

LarryF

Fiscal vs Calendar explains it

NetApp's fiscal Q1 falls in Calendar Q2, so its natural to see a drop from FYQ4/Q1 i.e. CYQ1/Q2 - I can only remember one CYQ1/Q2 sequential gain in the 7 years I've been here. But hey how about NetApp's 8.6% year-over-year growth, and the fact that EMC and NetApp are the only ones growing in tough storage market!

Larry

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Flash cheaper than disk? 'Customers aren't buying that', says NetApp CEO

LarryF

huh?

At last check, an 800GB SSD (3 watts) actually consumed more power, cooling and rack space per GB than a 4TB HDD (7.8 watts).

Larry

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Imation snaps up Nexsan for $120m

LarryF

Nexsan is not "one of the myriad storage statups", but rather found itself competing with a myriad of startups. Might explain why Imation got them on the cheap.

Larry @ NetApp

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What's the way ahead for Dell storage?

LarryF
Stop

Re: History is a great teacher

2-3X margins for making vs OEM'ing? Really? If that were the case, Dell would be making their own tape drives, routers, keyboards, desks and staplers. Simply not true. Dell would have given Equallogic global reach with or without buying them. Darren Thomas tried his best but unfortunately leaves a legacy of buying expensive storage companies that contribute continual declining revenue for Dell.

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LarryF

Re: History is a great teacher

Did they need to buy Equallogic to get that run rate? Me thinks not.

Larry

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LarryF
FAIL

History is a great teacher

Dell's storage division seemed to go into cardiac arrest the day they announced their split from EMC. The patient doesn't seem to be doing much better today. How would I fix it? Absolve all those aquisitions and go back to OEM'ing best-of-breed products. Dell's roots of greatness are in vendor negotiation and suppy-chain distribution. Shouldn't they stick to what they do best?

Larry @ NetApp

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EMC: 'Nope', XtremIO won't link to back-end arrays

LarryF
Happy

The market doesn't want unified storage? Really?

Got a chuck(le) out of the comment "we would end up with something similar to NetApp, and the market doesn't want that." Um, Chuck might want to take a look at the calendar, its nearly 2013 and apparently customers do want universal storage that's agile and unified.

Larry @ NetApp

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