Yup...
Pretty capable machine for 500 users or so. Depends on workload, as Blake said, it's OPS\CPU limited.
940 is a beast by comparison - probably about 2-2.5 times as fast.
Glenn
-----Original Message----- From: Blake Golliher [mailto:thelastman@gmail.com] Sent: Wednesday, October 04, 2006 3:44 PM To: John Stoffel Cc: Grey Friday; Glenn Walker; Brian Pascal; toasters@mathworks.com Subject: Re: Maximum throughput of a FAS270c
I'd say an F840 (I think that's what Glenn was suggesting). The 270 is an op limited machine. Dual core 650Mhz processor, and a gig of ram (subtract 256 for NVMEM) and you get a pretty limited box in terms of performance.
A 940 has a 1.8 ghz proc 4 or so gigs of memory, and a dedicated nvram card. Much better performance box. But a 270 wasn't marketed as a very fast box, but a very small, cheap box for small & remote offices.
-Blake
On 10/4/06, John Stoffel john.stoffel@taec.toshiba.com wrote:
"Grey" == Grey Friday grey.friday@gmail.com writes:
Grey>
http://www.spec.org/sfs97r1/results/res2004q2/sfs97r1-20040525-00186.htm l
Grey> On 10/3/06, Glenn Walker ggwalker@mindspring.com wrote: Grey> Brian,
Those numbers are deemed NetApp Internal Only - though I believe
that
Sales can share some info with you.
However this might help: a FAS270c is equivalent to a NetApp F840 system with respect to throughputhorsepower. Maybe just a tad
faster
even.
Glenn,
Just to be sure, you're talking about an F840 is roughtly equivilent to an FAS270, right? Not an F940?
John
PM disk. This is also assuming a 10ms latency for each iop. And subtract 2 disks per raid group for raid dp (if doing writes, don't if you are doing pure reads). So with around 50 disks (after you subtract the raid dp overhead) you can expect around 5500 iops from that set of disks (assuming 10k rpm disks). For the 112 aggregate, you an expect 98 spindles and 10780 iops. I'm assuming 4k iops, and 10ms latency.
Hope that helps, -Blake
On 10/4/06, Suresh Rajagopalan SRajagopalan@williamoneil.com wrote:
Given a disk IOPS of 100, I'd like to estimate total aggregate IOPS
for
the following cases:
- 56 disks, 1 aggregate, RAID-DP size 16
- 112 disks, 1 aggregate, RAID-DP size 16
I'm only interested in the total raw disk IOPS available in each case, not including considering the filer head. For example, we know
that
RAID-0 with 56 disks @100 would yield 5600 IOPS.
I don't know how to do this calculation with Data ONTAP's
implementation
of RAID4 or RAID-DP.
Any assistance would help.
Thanks Suresh