Forum .LRN Q&A: Re: Help Needed in Setting up .LRN to Scale

Posted by Andrew Grumet on
My mistake, the package is called "monitoring".

Posted by Alfred Essa on
Just for the record, can someone from Heidelberg post hardware characteristics (RAM etc). Thank You.
Posted by Michael Hebgen on
hi all together,

the machine we experience performance problems is

- a sun fire 280r
- 2048 megabytes storage
- 2 * 36 gb disks, 1 * 200 gb raid
- 1 fastethernet adapter with 1 additional virtual

- solaris 2.8
- webct (uses about 128 mg storage, minimal cpu)
- dotlrn 2.0.1
- oracle 1.8.i server & db


Posted by Andrew Piskorski on
Are you saying your Sun box has 2 GB of RAM? I think that's what you meant by "storage". What CPU does that thing have and how fast is it?
Posted by Andrew Piskorski on
Googling, looks like a "Sune Fire 280r" is usually a 2 cpu box. I've no idea what a "1 * 200 gb raid" is, nor how fast your two 36 GB disks (must be SCSCI) are, but that machine does not sound like a "big Solaris server". In fact, depending on how old it is (and thus how fast the CPUs, etc. are), it sounds fairly puny.

The biggest question is your disk IO. Just what is that "1 * 200 gb raid" exactly? If it is really a RAID 10 array with 4 or 8 disks or something like that, you might be fine. But I don't think that's what you have, and if my assumptions about your hardware are correct, it would probably only cost a few thousand dollars to buy a brand new and much faster Linux box.

Which isn't to say that your scaling problems are hardware related, they might not be. But when good server hardware is so cheap, it doesn't make sense to even try to run a large, high traffic site on a slow machine.