Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi, I have 2 servers supermicro lsi 2108 and I'm trying to build a SAN with drbd and pacemaker. I'm stydying, but I have no experience on large array of disks with drbd, so I have some questions: I'm using MegaRAID Storage Manager to create virtual drives. Each virtual drive is a device on linux, so my first question is: it's a good idea to create virtual drive of 8 TB (max)? I'm thinking to resync array time in case of disk failure (about 1 day for 8 TB). This is my cluster "infrastructure" (bottom to top): 1) linux device (eg /dev/sdb) 2) Ext4 partition (so /dev/sdb1 with maximum space allocated (8TB)) -- Question: ext4 is a good idea? Filesystem is mandatory at this level? 3) DRBD resource (rX. disk = /dev/sdb) 4) Physical Volume with /dev/drbdX 5) Volume Group vgiscsiXX 6) Logical Volume /dev/vgiscsiXX/lunY 7) Pacemaker resource DRBD (Master/slave) 8) Pacemaker resource LVM (ocf:LVM) 9) Pacemaker resource ISCSITarget 10) Pacemaker resource ISCSILogicalUnit 11) Paremaker resource VIP Questions: It's a good idea create more drbd resources or should I create only one resource and add all "megaraid devices" at start time? It's a good idea create one Volume group for all luns? Following this example, if I need to resize a LUN, I can add a drbd resource, create a PV, vgextend the volume group and then resize the logical volume associated to the lun. I'm sorry If this is a OT or if I wrote stupid things... Thank you, MM -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20150911/de7adddb/attachment.htm>