ZFS Compression – A Win-Win

Guest Author This may sound counterintuitive, but turning on ZFS compression not only saves space, but also improves performance. This is because the time it takes to compress and decompress the data is quicker than then time it takes to read and write the uncompressed data to disk (at least on newer laptops with multi-core chips). To… Leer más »

How to enable SSH Root Login In Solaris 11

Permit SSH Login for Root in Oracle Solaris 11 Open Terminal window and switch to root user. 1. Change the file /etc/ssh/sshd_config PermitRootLogin yes with PermitRootLogin no and save file.     vi /etc/ssh/sshd_config     PermitRootLogin yes 2. Comment out the “CONSOLE=/dev/console” line in /etc/default/login.     vi /etc/default/login   #CONSOLE=/dev/console 3.Remove “;type=role” from the root entry in /etc/user_attr or use the below command.  rolemod -K type=normal root 4. Restart the Services. #svcadm restart svc:/network/ssh:default… Leer más »

Remove all ZFS snapshots

#!/bin/bashfor snapshot in `zfs list -H -t snapshot | cut -f 1`dozfs destroy $snapshotdone

Mbuffer

https://everycity.co.uk/alasdair/2010/07/using-mbuffer-to-speed-up-slow-zfs-send-zfs-receive/ http://www.polyomica.com/improving-transfer-speeds-for-zfs-sendreceive-in-a-local-network/ https://www.commandlinefu.com/commands/view/13582/backup-to-lto-tape-with-progress-checksums-and-buffering