2012/6/12 Grzegorz Powiedziuk <gpowiedz...@gmail.com> > Hi, I am trying to figure out what is best setup for us. We would like to > use thin provisioning which is available on XIV (on our FCP LUNs). > Unfortunately it does not work very good with ext3 file system. To > reclaim some space I have to "zero out" free space first (after removing > files) and than it takes weeks(!) > for XIV to reclaim some unused space. > ..... >
Ah, I've learned that having JFS is not enough. Storage Foundation provides an api - vxdisk, which uses sg_write_same to unmap blocks. I am still looking for best solution but it looks hopeless for now .. thanks Gregory ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
