May
16
2021
You are hosting Mysql or PostgreSQL data directory on iSCSI disks but the service fails to start at server’s boot. The service does not find the directory. However, you can start the service manually if you log on the server once SSH is available. These are logs for Mariadb but they would be similar for […]
Tags: iSCSI, linux, MariaDB, Mysql, Postgresql
Feb
23
2011
I’ve noticed backups are getting slower and slower over time going from 500 to 2500MB/min throughput. I run backups on 2 dedicated RAID0 disks hosted on a iSCSI MSA array first, and duplicate them on tapes. Since I want to use the same array for a new database project, I want to measure and tune […]
Tags: 2003 server, iSCSI, linux, performance, redhat, SAN, Storage, Windows
Jan
14
2011
Here are a few steps to configure iSCSI disks on Linux. Although I set this up on a Redhat Enterprise connected to an HP MSA 2012i, the whole configuration remains generic and can be applied to any SAN.I will add another post to check how both Linux and Windows perform on the same iSCSI device, […]
Tags: iSCSI, linux, LVM, multipath, redhat, SAN, Storage
Sep
28
2009
TCP Offload Engine (or TOE) transfers network processing load, from the CPU (software) to the network controller (hardware). The network card needs to support TOE such as the HP NC382T. This functionnality is disabled after the server installation. Check if TOE is enabled Windows 2003 The activation can only be checked with the […]
Tags: 2003 server, 2008 server, iSCSI, linux, Windows