Enterprise Software Thread, Exchange 2010 storage \ virtualisation in Technical; Finally replied to ya PM Thought I had already replied in some way but i guess not.
Wrote a huge ...
7th April 2011, 12:42 AM #16
Finally replied to ya PM Thought I had already replied in some way but i guess not.
Wrote a huge one, and then for no reason i can see (seeing as i didnt actually touch anything) the browser refreshed and i lost me "not so quick" Quick Reply hehe
So many different ways u can keep the data safe in Exchange 2010 natively that it wont be a problem, minus some huge meteor type disaster like you say, but then, i think the data wont matter a jot if something like that happened
DAG with Passive copies is awesome btw...
...and yes, quite true (tho ESXi-level HA has no bearing on Exchange Sukh - i,e. there are no multiple copies of VM's or anything like that if thats what you were wondering that would definately not be supported by MS indeed )...and yes, like Sukh said, you can also make a lagged copy mailbox server which would be ideal if the SAN exploded for example or killed all the data on your iSCSI LUN's hooked into your exchange VM's. So ideal idea there would be a physical server with JBOD, and setup as a lagged MBX, or even a member of the DAG that only stores the passive copies.
I've spotted a few posts on the dual HA unsupported configuration, I think I'll probably stick with the VMWare HA to cover loss of a host as the DAGs don't help much if the SAN they're all sitting on is the part that fails
All this and having the dumpster and deleted items / mailbox retentions (at the db lvl) sorted, you've pretty much got it all covered
7th April 2011, 12:50 AM #17
@nathan - What if an email is deleted after your dumpster limit and you want to recover. For this reason you still need backups. Sure you can restore an email from tape, but ideally you would want to recover within 30mins-1hr. So I think backups are still critical if you want email recovery within your RTO/RPO.
Again, is you have a site failure and it's acceptable to the school then yes, don't bother with a DR site, just ensure your school is aware of that. Or you can go to the clould which has benefits or have a mix of cloud and on-premise.
It really depends if email is critial or not and what loss/downtime is acceptable.
In terms of Virtual supprt, I was referring to the below
Last edited by sukh; 7th April 2011 at 01:01 AM.
7th April 2011, 03:03 PM #18
7th April 2011, 05:49 PM #19
7th April 2011, 06:08 PM #20
7th April 2011, 06:13 PM #21
Apologies, I should have directed my 'PM' intention to gshaw.
7th April 2011, 06:17 PM #22
@JoskosSolutions - What are your thoughts on this topic? Anything to add?
7th April 2011, 11:15 PM #23
We've had Exchange 2010 running on vSphere 4.1 VMs with EQL SAN (15K SAS) and no problems, performance is great. I've also seen 2010 running on SATA storage in RAID5 and again, no complaints. I imagine all SAN hardware of this class shows little discernable performance difference if spec'd adequately and paired with decent back-end network gear and servers.
So long as you're covered by a reliable backup solution, Veeam seems great, you're laughing. DR-wise, cloud-based services are the way to go if you don't have multiple sites, though I've seen nearby schools work together to host each other's (encrypted) data, is that something you've considered?
8th April 2011, 12:03 AM #24
@JoskosSolutions - Have you benchmarked SAN's if so what ones? Do you have any baseline on performance on the SAN's you recommend? Any tested performance metrics you can share.
I agree cloud is the way to go depending on the env, for school this seems a good approach or a mixture as stated (on-premise/cloud).
Even with Veeam - Have you managed to restore data after the dumpster within a reasonable tme frame? (depends on RPO/RTO obviously).
Also, using another school as a DR site can be a good idea, however, there will be some serious costs involved, maybe cloud would be better in terms of what id offeref, enterprise data centres.
Another reason why the government is doing the Building schhols for future etc...
8th April 2011, 12:29 AM #25
Last edited by tarquel; 8th April 2011 at 12:34 AM.
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