All that said... I seriously doubt the small number of users users will notice the difference on a F&PS server.
> On Jan 30, 2014, at 14:01, "Kent McKinney" <[email protected]> wrote: > > The type of controller would factor into whether the SAS drives would be > worth it and what kind of load they can handle. A low-end SAS controller may > be comparable to a SATA controller in performance and features. However, I > have seen high end RAID controllers be literally 10 times faster (300+MB/s > compared with 30MB/s) – with the same RAID setup and same set of SAS drives – > vs a low end SAS card. > > Regards, > Kent McKinney > > From: Kramer, Jack [mailto:[email protected]] > Sent: Thursday, January 30, 2014 3:38 PM > To: <[email protected]> > Cc: [email protected] > Subject: Re: [NTSysADM] 7200RPM SAS vs. 7200RPM SATA > > 7200 rpm SAS disks are mechanically the same as 7200 SATA and will have the > same performance. What you get are SAS controller capabilities like dual-path > redundancy. That being said, SAS-capable controllers are usually faster than > SATA controllers, just because they're typically better specced parts. > > Sent from my iPhone > > On Jan 30, 2014, at 2:46 PM, "David Lum" <[email protected]> wrote: > > Short version: Other than cost, is there any reason not to use a 7200RPM SAS > drive in place of a 7200RPM SATA drive in a server with more than a couple > concurrent users connected to it? > > Long version: > Scenario: SMB Client, 50 users, three physical servers. All physicals running > Hyper-V (two with 2012, one with 2008R2) > > Server1: 3 years old, two RAID1 volumes using 15K SAS drives (SBS > 2011/Exchange/SQL/file print for 30 users) > Server2: 1yr old, RAID 10 using four 15K SAS drives (file/print for 15 users, > remote site from the other two) > Server 3: 7 yrs old, RAID 1 with two 7200RPM SATA drives (file/print for 15 > users) > [And yes, I plan on swapping Server1 and Server2’s roles so the faster disk > subsystem is the one with SQL and Exchange on it.] > > Possibly relevant: I use DFSR between servers 1 and 2 and would like to have > it with server3 as well. > > I am replacing Server3 with a three year old 1U and I’m torn between giving > it four 7200RPM 1GB SAS drives or four SATA drives. Going with 10K or 15K SAS > doubles the price of the drives. Reading various links, I read the 7200 SAS > drives are either effectively SATA drives with SAS controller, or they’re > simply slower spinning, higher MTBF SAS drives. I get conflicting information… > > Either way, a 7200RPM SAS drive array should handily outperform 7200 SATA > drives if 10+ users are connected to it, correct? > > <image001.jpg> > > > > > David Lum > Network System Admin, Information Services > office 503-265-4728 | modahealth.com > > I’m excited to announce that ODS Health is now Moda Health. Please make a > note of my new email address, [email protected], so we can stay > connected. > > This message is intended for the sole use of the individual and entity to > whom it is addressed, and may contain information that is privileged, > confidential and exempt from disclosure under applicable law. If you are not > the intended addressee, nor authorized to receive for the intended addressee, > you are hereby notified that you may not use, copy, disclose or distribute to > anyone the message or any information contained in the message. If you have > received this message in error, please immediately advise the sender by reply > email and delete the message. > > > >
