[dexter1]

Hi mcren and welcome,

It looks like the disk is having problems. Check first that the cables are okay.
Does the disk make odd sounds, like clicking?

If you need to get a new disk don't buy an SCSI-sata adapter. Those are very expensive.

Your best bet is to buy a SCA disk with 80 pin SCSI interface and buy a 80 SCA->50 pin converter. This way you get a quiet modern disk inside your Indy without breaking the bank.

Alternatively there are adapters like the SCSI2SD which converts an SD card into a SCSI disk. It's more expensive than a SCA SCSI disk though.