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1 2 Previous Next 20 Replies Last post: Dec 9, 2005 8:31 AM by king@it.ibm.c…  

2x DL360 2/3.8 Xeon or 1x DL385 2/Opteron dual-core? posted: Dec 7, 2005 10:36 AM

Click to view leclercc's profile Enthusiast 62 posts since
Mar 23, 2005
Hi,

I've a got a dilemma on my hands right now!

We're running esx 2.5.2 on a DL360G4, 2x 3.6GHz, 8G ram with 7 VM's and another 3 planned.

Most vm's use about 1-5% cpu time, but I have 2 right now that run sql db's (MSDE and MySQL). It's taking a bit of a toll on the pCPU's and the ready% is often high on most vm's (high means 10 on average per vm)

In the 3 vm's left to put on esx another 2 use sql db's (MSDE and MSSQL).

So I'm getting suspicious about putting all these vm's on the same physical machine since it's only a 2way.

That's why I suggested buying a new DL385 with 2x AMD dual-core and 12G ram. But I'm also wandering if splitting the vm's from one to two esx servers would be better. If so, I would then buy a second DL360 (same as the actual esx machine).

As far as price is concerned it's a difference of 4K$ if I go to the DL385.

Any suggestions?

Tnx
Chuck
Click to view Stamaraster's profile Expert 328 posts since
May 10, 2004
If you've got a license for vMotion, I would match your hardware, and not consider changing CPUs, as you cant vMotion between Intel & AMD.
Click to view waynegrow's profile Master 832 posts since
Feb 2, 2005
Purchasing the tiwn would allow you the option to VMotion where purchasing the Dual Core would more than likely now. If you are not using a SAN or VMotion, why not go with the latest technology?
Click to view jasonsawyer's profile Hot Shot 134 posts since
Nov 6, 2004
FWIW, I agree with Stamaraster. The Opterons are great, but you've already gone down the Intel path. Stick with what you have for now, then think about Opterons for your next farm.

(Unless you can re-purpose your DL360 and move the entire environment to Opteron. In that case, one DL585 might have a better price / performance ratio than two DL385s.)
Click to view Stamaraster's profile Expert 328 posts since
May 10, 2004
Try as hard as you can to keep a hold of the old server if you go with the DL585. VMs have a habit of growing faster than a clutch of rabbits, and it never hurts to have too many ESX servers.

Message was edited by:
Stamaraster - Is it a clutch of rabbits? I cant remember.

Message was edited by:
Stamaraster

From http://www.collectivenoun.com
bury of Rabbits
colony of Rabbits
husk of Hares/Jackrabbits
nest of Rabbits
warren of Rabbits
Dont know where "clutch" came from.
Click to view jasonsawyer's profile Hot Shot 134 posts since
Nov 6, 2004
I must be a mind reader... :)

Keep in mind that 10 VMs on a DL385 will probably be getting pretty close to max. It might be cheaper in the long run to buy a 585 now rather than a 385 now and then another one in six months. Just a thought.
Click to view Stamaraster's profile Expert 328 posts since
May 10, 2004
I meant to type 383 instead of 585, but the general idea of the post is still sound. Dont give up hardware unless you absolutely have to. Itll be an easier sell to say that you just need another license of ESX to bring up this "brand new super important VM that just HAS TO go live RIGHTNOW!" than to add that you also need another server.

Besides, but holding onto the Intel box, you can use to to backup all of your VMDK files, and have them sitting on an ESX box ready to go (but without a license) should the need arise.
Click to view jasonsawyer's profile Hot Shot 134 posts since
Nov 6, 2004
Yeah, I hear that. Budgets are never fun for the systems guys. (Myself included.) But, as they say in your neck of the woods, "C'Est la vie."
Click to view kix1979's profile Champion 3,769 posts since
Oct 14, 2004
The other servers that are running SQL/MSDE is it possible to offload the database to one of the existing SQL servers? Generally adding a new database will be a lot less taxing then adding another server. As for the hardware, can you lease the equipment? It tends to lend itself a little easier to budget for :)
Click to view HeadBlend's profile Enthusiast 135 posts since
Dec 16, 2004
Are you using SAN disk? With the DL360, I imagine you are.

There would be minimal advantage keeping the DL360 if you have been using local disk.
Click to view DoratheExplorer's profile Hot Shot 205 posts since
Nov 5, 2004
I'd expect to see closer to 4-1 on the Dual Core DL385's. Well thats what I'm hoping with low CPU utils. I've got 4 turning up by the end of the week.

HP SIM v5 loves CPU/Mem. Run's quite merryily until you start pushing out version control info to your servers, then it starts dragging its feet.

Also maybe use the DL360 as a staging/testing server and the DL385/DL585 as your production farm. Your still be able to cold migrate between hosts.
Wait for ESX v3 ( I believe someone mentioned the AMD/Intel Vmotion will be resolved).

Message was edited by:
DoratheExplorer

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