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Description of problem: The Hypervisor Deployment Guide goes into some detail about the minimum size required for each partition: http://documentation-stage.bne.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/Hypervisor_Deployment_Guide/index.html#chap-Deployment_Guide-Requirements_and_limitations_of_Red_Hat_Enterprise_Virtualization_Hypervisors The rhev-hypervisor 6.x builds however appear to automatically calculate the partition sizes, no opportunity is presented for changing them. The existing content should be replaced by one overall number representing the minimum amount of storage that must be available as a total. Version-Release number of selected component (if applicable): 6.1
Mike can you confirm: 1) That it is not planned to allow changing of the partition sizes from the installer UI. 2) Whether or not granular configuration will still be supported when parsing in the storage_vol kernel parameter? 3) What the recommended total minimum storage is for rhev-hypervisor 6.1/6.2? Thanks, Steve
(In reply to comment #1) > Mike can you confirm: > > 1) That it is not planned to allow changing of the partition sizes from the > installer UI. Correct, no changes in the GUI install > 2) Whether or not granular configuration will still be supported when parsing > in the storage_vol kernel parameter? Yes, storage_vol is still supported for automated installations > 3) What the recommended total minimum storage is for rhev-hypervisor 6.1/6.2? Actual minimums Root (x2) = 256*2=512MB Config = 5MB Logging = 5MB (Though i think VDSM actually increases this to 2GB) Data = 5MB Swap = 5MB 532 MB actual minimum Defaults: Root (x2) = 256*2 = 512MB Config = 5MB Logging = 2048MB Swap is dependent on RAM + and overcommit ratio RAM Swap(MB) <4GB 2048 <16GB 4096 <64GB 8192 else 16384 overcommit defaults to 0.5 and is multiplied by the actual RAM on the machine. I think the swap calculation is actually documented somewhere in the base RHEL guides, though I'm not sure exactly where Data, by default takes up the entire rest of the disk. It is used for upgrades when initiated from RHEV-M, so it should probably be at least 256MB
Actual minimums ended up being 8 MB, not 5 MB, as 8 MB is the minimum size of an LV extent. * See Section 2.1. * See Section 4.2.3 under storage_vol parameter. Red_Hat_Enterprise_Linux-Hypervisor_Deployment_Guide-6-web-en-US-1-17.el6eng
* Section 4.2.3 - Updated to read 8 MB. Will stage for review in next push.
Staged for QE review: Red_Hat_Enterprise_Linux-Hypervisor_Deployment_Guide-6-en-US-1-22