I'm not sure there's so much in it in terms of performance between RDM and VMDK but the answer there is to use Jetstress.
The benefits tend to be if your SAN has VSS aware snapshots and you allocate LUNs directly to the initiator inside of the VM, but there may also be benefits to you being able to snapshot the entire VM which you can't do with LUNs mounted from within the guest. Also the way you backup may favour RDM or VMDK or in initiator within guest. Then there's the 2tb limit on VMDK's and RDM. Paul -----Original Message----- From: Jon D [mailto:[email protected]] Sent: 14 March 2011 13:31 To: NT System Admin Issues Subject: Exchange Database -- VMDK or RAW? For those who have your Exchange boxes inside of VMWare, did you put your databases inside VMDK files, or did you go RAW? VMDK seems like it would be easier to manage, but I'm wondering about size issues, performance, etc. Thanks, Jon ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin -- MIRA Ltd Watling Street, Nuneaton, Warwickshire, CV10 0TU, England Registered in England and Wales No. 402570 VAT Registration GB 100 1464 84 The contents of this e-mail are confidential and are solely for the use of the intended recipient. If you receive this e-mail in error, please delete it and notify us either by e-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the e-mail as this is prohibited. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
