-
Recent Posts
- Resolving slow ssh login performance problems on OpenIndiana
- Intel 910 SSD ZFS benchmark results on OpenIndiana 151a1 for 8k IOPs using filebench and pgbench
- Crucial M4 SSD SMART failure detection
- Using vlan tagging with OpenIndiana and Juniper switches
- Intel 910 SSD compatibility issues with other LSI mpt2 based products – Part I
Recent Comments
- Jason Matthews on All About Adaptec Arcconf, ZFS, and OpenIndiana
- Joe on All About Adaptec Arcconf, ZFS, and OpenIndiana
- Fredrick E. Mills on Intel 910 SSD compatibility issues with other LSI mpt2 based products – Part I
- cheap louis vuitton china on ZFS: How to check disk based write cache status
- Gayle House on ZFS: Performance Tuning for Scrubs and Resilvers
Archives
Categories
- Adaptec
- arcconf
- AWS
- Benchmarks
- COMSTAR
- crossbow
- filebench
- IllumOS, OpenIndiana, OpenSolaris, Nexenta, & Solaris
- Intel 910 SSD
- Intel Server
- iSCSI
- Juniper
- LACP
- Link Aggregation
- Linux
- NAS
- OpenIndiana
- Parallelization
- Performance
- Postgres
- SAN
- SSD cache
- system automation
- Uncategorized
- UNIX CLI
- VNC
- Windows XP
- X11
- xVNC
- ZFS
- ZFS Fun Fact
- Zones
Meta
Monthly Archives: May 2011
The Art of Parallelization with GNU xargs and pssh
As you can imagine, running a for() loop on 1000+ systems is fraught with potential issues and is very very slow. Running commands in parallel greatly speeds things up and keeps normal network time outs from bringing your work to … Continue reading
Posted in Parallelization, Performance, UNIX CLI
Tagged OpenSSH, Parallelization, pssh, SSH, xargs
1 Comment
Adjusting disk time outs on errors
Here is very interesting post about adjusting disk time outs to minimize disk subsystem brown outs on your favorite OpenIndiana, Solaris, Nexenta based system. The techniques describe can be applied to SATA drives as well, as it boils down to … Continue reading
Simple COMSTAR iSCSI, FCoE, FC config view
Someone reached out to me indicated they were having problems masking their iSCSI LUNs. It occured to me that there is no simplified means to quickly view all the iSCSI related STMF configuration data. I don’t count dumping the STMF … Continue reading
How enable or install xVNC on OpenIndiana 148
VNC comes in at least two forms for Unix/OpenIndiana/Solaris/Linux/etc. It can run as a user process after you have logged into the xserver, or xVNC can run out of the super server (inetd/xinetd etc). The pros to the VNC option … Continue reading
How to backup and restore COMSTAR (stmf) configurations on OpenIndiana and Solaris.
STMF/COMSTAR configuration data is maintained in the service configuration repository, just like processes started by the service management facility. Like all system configuration data, it is important to maintain backups of your system configuration for all the obvious reasons. Coming … Continue reading
Posted in IllumOS, OpenIndiana, OpenSolaris, Nexenta, & Solaris, iSCSI, OpenIndiana, ZFS
Tagged COMSTAR, FCoE, ISCSI, iSER, NAS Solaris "file server" ZFS, STMF
2 Comments
How to count files on a ZFS file system
I have a number of thumbnail servers at work based on OpenSolaris and OpenIndiana. Periodically we enter into a discussion about how many videos we have indexed on the internet or how many thumbnails we have, etc. On traditional file … Continue reading
How to view data distribution across a zpool – the 10,000 foot view
How you create your zpool and which resources you allocate to it is critical. Outlined below is a thumbnail (origin) server. It holds about 600M images at time of writing. We can easily see the data distribution across the … Continue reading
Using OpenIndiana/Nexenta/Solaris with ZFS, COMSTAR, Microsoft iSCSI initiator, and LUN Masking
When I was first getting started with COMSTAR I tried feverishly to find an example of how to mask LUNs from iSCSI clients. The ultimate goal in LUN masking of course, is to keep someone or even yourself from mounting … Continue reading