-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Janne Peltonen wrote: > Hi. > > There is a clustered vg in my five-node cluster (four of which have > access to the SAN where the physical devices reside). It seems to me > that the more LV's and PV's I've got, the more time it takes to get the > VG activated. When I had 8 PV's and 79 LV's, it took some ten minutes to > activate the VG on each node. Now, I extended the VG by 39 PV's (so that my Did you put a metadata copy on each PV? Check with vgdisplay: --- Volume group --- VG Name t0 System ID Format lvm2 Metadata Areas 4 <--------- Metadata Sequence No 3 VG Access read/write VG Status resizable MAX LV 0 Cur LV 0 Open LV 0 Max PV 0 Cur PV 64 Act PV 64 VG Size 7.75 GB PE Size 4.00 MB Total PE 1984 Alloc PE / Size 0 / 0 Free PE / Size 1984 / 7.75 GB VG UUID PcERts-A1MU-KoT6-gu6R-Acuw-MYuf-08Ximv If that's the case, you probably don't want one for each PV here. It's unnecessary and will slow the tools down a lot when there are a large number of PVs. Check out the --metadatacopies option to pvcreate and re-create the volume group with a much smaller number of MDAs if this is the problem you're seeing. If you're careful you can do this in-place via the - --restorefile option to pvcreate and vgcfgbackup/vgcfgrestore. Regards, Bryn. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFGhMiu6YSQoMYUY94RApX4AKCEW1/2ybBF7dmGnIHVTN1kKUpYUACfbxt4 kBTSA2222ahlwxasXKp3ffg= =Gohu -----END PGP SIGNATURE----- -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
