Hi all
i have a rhel5 server with 3GB of RAM and 4 xen guests running:
- 1 Windows 2003 + Citrix PS 4.5 with 1 GB
- 2 Rhel5 guests with cluster suite and GFS with 640 MB of ram in each one
- 1 rhel5 guest with 512 MB of RAM
Total: 2.816 MB of RAM
Dom0 "only have" 256 MB of ram. Is sufficient or do I need to assign
more RAM
on dom0? For guests, this ram is sufficient ... and I don''t need to do
migrations ...
Mnay thanks ..
--
CL Martinez
carlopmart {at} gmail {d0t} com
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> -----Original Message----- > From: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of carlopmart > Sent: 11 May 2007 17:11 > To: xen-users@lists.xensource.com > Subject: [Xen-users] Minimal ram to use on Dom0 > > Hi all > > i have a rhel5 server with 3GB of RAM and 4 xen guests running: > > - 1 Windows 2003 + Citrix PS 4.5 with 1 GB > - 2 Rhel5 guests with cluster suite and GFS with 640 MB of > ram in each one > - 1 rhel5 guest with 512 MB of RAM > > Total: 2.816 MB of RAM > > Dom0 "only have" 256 MB of ram. Is sufficient or do I need > to assign more RAM > on dom0? For guests, this ram is sufficient ... and I don''t > need to do > migrations ...Dom0 should be fine with 256MB. The other guests is pretty much up to you, because it depends on what they are used for. The numbers you''ve given seem reasonable, but ultimately, you have to "try and see". The memory usage in the guest is so dependant on what you do within the guest that it''s impossible to say if 128MB or 4GB is the right amount of memory just based on what OS you''re going to run... A firewall may well fit in 64MB if you have a stripped down version of OS to install. On the other hand, a MySQL-server for web-serving that supports 4000 concurrent users may want 4GB (or more!)... -- Mats> > Mnay thanks .. > > > -- > CL Martinez > carlopmart {at} gmail {d0t} com > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > > >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Petersson, Mats wrote:> > >> -----Original Message----- >> From: xen-users-bounces@lists.xensource.com >> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of carlopmart >> Sent: 11 May 2007 17:11 >> To: xen-users@lists.xensource.com >> Subject: [Xen-users] Minimal ram to use on Dom0 >> >> Hi all >> >> i have a rhel5 server with 3GB of RAM and 4 xen guests running: >> >> - 1 Windows 2003 + Citrix PS 4.5 with 1 GB >> - 2 Rhel5 guests with cluster suite and GFS with 640 MB of >> ram in each one >> - 1 rhel5 guest with 512 MB of RAM >> >> Total: 2.816 MB of RAM >> >> Dom0 "only have" 256 MB of ram. Is sufficient or do I need >> to assign more RAM >> on dom0? For guests, this ram is sufficient ... and I don''t >> need to do >> migrations ... >You might need more memory in Dom0 if you''re planning to use LVM snapshots and then using something like rsync to back them up to a remote server. Simon _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users