High Availability Cloud Hosting – What’s In Store for Next Year
We have been hard at work this year to bring our customers a new level of high availability. Our order has placed with HP for a SAN and..
Changing 3ware Storsave Profile Without Rebooting
If you have ever had 3ware cards underperforming before you have probably found out about the storsave profile and how it can effect..
How to add a hotspare drive to a 3ware array/controller
You can add a hotspare drive to a 3ware controller using the tw_cli utility. Example:
tw_cli /c0 add type=spare disk=14
Where c0 is the..
How to delete files when you encounter: -bash: /bin/rm: Argument list too long
If you have tried to empty any large folders, such as mailbox directories or temporary folders on a linux server you will probably..
Critical Alert on Supermicro IPMI
If you have noticed a Critical alert on the top left hand side of new Supermicro IPMI cards, this can usally be cleared easily by doing..
Using smartctrl to view drive errors in a 3ware RAID Array
If you have ever had to deal with failed drives in a RAID array, you will know how painful it can be. We encountered a strange error..
Installing smartctl Tools on XenServer
If you have tried installing any software on XenServer you will know that it is not an easy process. This article shows how you can..
Creating a jbod in 3Ware 8000/9550
3Ware cards do not always make it easy to export drives as JBOD, or for single drives. To get this working it needs to be done through..
IOS: Clearing IP from ARP Cache
A quick easy way to clear an IP from the ARP cache on an IOS switch/router is:
clear ip arp [ip address]
12 Core CPUs Are Here!
While Intel was releasing their 8-core Xeon processor, AMD has released an 8-core, and a whopping 12-core processor! Introductory..
Write IOPs for RAID Levels 0, 1, 5, 6 and 10 (RAID Performance Sacrifice)
When building any RAID array you need to consider how many IOPs you require, and what impact different RAID levels have on the number of..
How to list all DNS records/entries for a domain name in Linux?
If you are trying to find out what exact DNS records your DNS server (or someone else’s DNS servers) are publishing for a specific..