Hello,
Do you have recommendations on EXT4 and LVM options for a 3TB file-system for mdbox?
We currently use the mbox format on a XFS with poor performances since the update in v2.1 (Debian).
We will switch to EXT4 to have the possibility of shrinking the file-system if needed (which is not possible with XFS), we currently have LVM partitions but with mdbox we will use LVM snapshots to backup the server in a consistent state.
So,
any particular options to use with mkfs.ext4 for the creation of the FS ?
do you recommend a «thin» logical volume ? Our storage (IBM Storwize v7000) already have thin provisioning capabilities.
The server will be a VMware virtual machine running Debian with RDM LUNs of 500GB. Data blocks will be automatically spread across several RAID disk (SSD, SAS, SATA) by the v7000. The «mdbox_rotate_size» will be configured around 10MB.
Thanks,
Nicolas C.