Robert Milkowski's blog

Solaris 11.4 - setting zfs_arc_collect_check=0 via mdb (takes immediate effect) or via /etc/system makes ZFS to start feeding l2arc immediat...

The stop() action in DTrace stops an entire process... well, actually it doesn't. It stops a single thread in a multi-threaded process, ...

Small but useful extension to DTrace is now available in Solaris 11.4.SRU6. It allows to easily print current date with an optional nanoseco...

Solaris 11.4 introduced few new ZFS pool versions with interesting new features or enhancements: # zpool upgrade -v ...  38  Xcopy with ...

On Linux one needs to recompile kernel modules to get protection, while on Solaris this is not necessary. Once you are on Solaris 11.4 with ...

Right, finally Linux is getting something similar and useful to DTrace, see bpftrace . However for it to be useful in enterprise it has to b...

Solaris 11.4 includes fixes for Meltdown and Spectre v2 (fixes for v1 were delievered few months ago for 11.3 via SRU and are also included...

Solaris 11.4 GA is finally out and available for download. See  What’s New

Solaris 11.3 still doesn't support dumpadm -d none. This is useful in some scenarios, for example when troubleshooting failed AI instal...

This got finally integrated into 11.3 SRU 11.3.33.5.0 zfs send compressed data (Bug 15387669)

Thanks to Victor Latushkin, below is a procedure on how to extract ZFS wrapping key for a given dataset. Notice that key length is encoded i...

Having CTF compiled into binaries is very useful for debugging. Recently I wanted to print some structures by utilizing mdb and ctf from a b...

I wish Solaris 11 supported CTF in DTrace in user-land in a similar manner as Illumos does .

The just released Solaris 11.3 SRU31 has an updated pam_list module which adds support for '*' and comments. The '*' wildcar...

How to get gcc-7 on Solaris 11.4? root@solaris:~# pkg install gcc-7 Packages to install: 14 Mediators to change: 1...