The trick is simple, and many of those who deal with HA cluster get at least once to such a setup – have HA cluster without HA. Yep. Single node, just to make sure you know how to get this system to play. I have just completed it with Linux Heartbeat, and wish to share…
When you own a data storage, one of your major considerations is how to backup your data. Several solutions exist to answer this question. When your data grows to a certain size, you encounter an additional issues – How to backup the data with minimum performance impact. It is quite obvious that backup devices has…
Took two steps: openssl x509 -in input.crt -out input.der -outform DER openssl x509 -in input.der -inform DER -out output.pem -outform PEM
Well, not exactly a digram, but I will describe the IBM FastT200 RJ25 to DE9 wiring. This inforamtion was given to me by a friend, and I both hope it to be accurate, and hope it would help whoever needs it. RJ25 DE9 1 8 2 7 3 3 4 …
cat /proc/scsi/qla2xxx/$Z” where Z represents the SCSI interface the Qlogic has taken for itself, you’ll get something like this: <Snip> . . </Snip> SCSI LUN Information: (Id:Lun) * – indicates lun is not registered with the OS. ( 0: 0): Total reqs 63185608, Pending reqs 0, flags 0x2, 0:0:81 00 Assuming you’ve just added the…
It’s sort of a relationship between myself and this Tyan. Same server, changing demands. This time, we’ve had to install on this server RHEL4 32bit. Net-installing RHEL4 Update 3 was impossible. See here, so we’ve installed it from CDs (didn’t have PCI-X network card handy). When booting the server, it showed us only a single…
