Re: [Users] Limit swap space on ovirt node install

Hi Mark, It took a while to have the time to continue testing. I tried both methods. When I use " storage_vol=:4000:::: " and " mem_overcommit=0" everything installs fine. But after I reboot the node i get the screen "login as admin to configure" and the system hangs. After several seconds I get the message "systemd-readahead-collect[500]: Failed to open pack file: Read-only file system" When I only use " mem_overcommit=0 ", I cannot install the node as the Disk Space Check tells me I need a bigger drive. "Available Space: 14305MB" "Required Space: 26782MB" This should be less: 0*32 + 8(32<64) = 8GB Swap. Plus the storage ovirt needs itself (300MB?) I tried ovirt-node 2.5.1 and 2.5.2 Kind regards, Jorick Astrego Netbulae B.V. On 09/01/2012 10:34 PM, Mike Burns wrote: > You can do this with 2 different methods, both of which are on the > kernel command line during boot. Simply hit TAB when you're selecting > the install option and add one of the options below to the command line. > > 1. You can set " storage_vol=:XXX:::: " where XXX is the desired > size of the SWAP partition in MB. It has a minimum size of 5MB. > This lets you set a static size for swap. > > 2. You can set mem_overcommit=0. This will change our calculation > to not add any swap for overcommit. It will still calculate a value > based on the amount of RAM, but not as large as with the overcommit. > > The swap size is calculated at mem_overcommit*RAM + <BASE_SWAP> > > BASE_SWAP is calculated using this formula: > > if MEM_SIZE < 4GB: > BASE_SWAP = 2GB > elif MEM_SIZE < 16GB: > BASE_SWAP = 4GB > elif MEM_SIZE < 64GB: > BASE_SWAP = 8GB > else: > BASE_SWAP = 16GB > > > We are planning to expose these option in the TUI installer, just not > there yet. > > Mike > > > ----- Original Message ----- >> Hi, >> >> We have a 16GB SSD in all our nodes to install the ovirt node image >> on. >> While installing I get the message there is not enough space. >> >> After checking the requirements of ovirt node it should fit quite >> easily, but I think the swap space assigned is too much as we have a >> lot >> of ram in the nodes. >> >> As we don't overcommit the RAM in our nodes we shouldn't need that >> much >> swap. Is there any way to modify it? I'd hate to have to buy new >> SSD's :-( >> >> -- >> Regards, >> >> Netbulae >> Jorick Astrego >> >> Netbulae B.V. >> >> >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >>