If you do go with an Indy, one specific piece of advice that SGI used to give out was to avoid placing two hard drives in an Indy. The drive slots were very close together, and there was minimal clearance between the case and the drives, so overheating could be an issue. I never ran into the problem myself, but since Indys are now all 20+ years old, the old advice probably is more relevant than it used to be, even with newer, cooler running drives.
mapesdhs wrote:Re the OS, 6.2 would certainly run better on an Indy in terms of resource usage, though I'd still run 6.5.22 if possible unless it really didn't matter. For O2 I'd always run 6.5.22 minimum.
Depending on the intended use, I've found the amount of RAM to be the main issue in choosing between IRIX 6.2 and 6.5 on an Indy. While SGI supported IRIX 6.5 on Indys with less RAM, I consider 128 MB to be the minimum amount of RAM for an acceptable IRIX 6.5 experience on an Indy, with 192 MB or 256 MB strongly preferred, especially if interactive GUI use is anticipated. Even with 128 MB of RAM, running 6.5 on an Indy leads to a lot of (slow) virtual memory use. Meanwhile, IRIX 6.2 performs quite reasonably, even on Indys with as little as 32 MB of RAM.
uunix wrote:imho o2's are like teenagers with a chip on their shoulder, they either get up in the morning or don't.. and you never know what you have done to upset them.
My experience with O2s is that many of them don't like to be moved, but they are solid when kept in place. I have no hard data to back this up, but my sense is that the various modules in earlier O2s are very susceptible to slipping slightly out of position, so picking up or even sliding such an O2 a few inches across a desk can lead to an inability to boot until all modules are reset into place. Our lab had all sorts of problems with this when O2s first came out, to the degree that after moving an O2, we would take out the modules and put them back in before attempting to restart the machine. Newer O2s didn't seem to have as much of an issue. Perhaps needless to say, we wouldn't even think of moving an O2 an inch while powered on.