Alex, thank you for your reply. No, the VMs do not have any snapshot enabled.
Cris -----Messaggio originale----- Da: Alex Vandiver <a...@chmrr.net> Inviato: Wed Sep 02 2015 19:35:20 GMT+0200 (CEST) A: Guadagnino Cristiano <guadagnino.cristi...@creval.it> Cc: "rt-users@lists.bestpractical.com" <rt-users@lists.bestpractical.com> Oggetto: Re: [rt-users] RT and Disaster Recovery - problem > On Wed, Sep 02, 2015 at 03:11:52PM +0000, Guadagnino Cristiano wrote: >> Our RT servers are virtualized on VMware. >> [snip] >> However, the problem is that - after reconfiguring the VMs - RT becomes >> slow as a snail (tens of seconds for each page change/refresh). > > Do the VMs have any snapshots enabled? I know that historically, at > least, the mere presence of a snapshot file caused all I/O to be COW, > which caused order-of-magnitude I/O bandwidth degradation. > - Alex >
