Ok DOS is the POST (Power On Self Test).
The 128MB is the Cache Memory size on the Smart Array Controller.
It also will tell you how many logical drives is found.
It is impotent, tht you understand, what is ment when talking about Array and Logical Drives, on the Smart Array controller.
An Array is a number of physical disks, that is grouped.
The Logical Drive(s), is the drive(s) that is presented to the server (Host).
You can create multible ld's within an array.
Also you can create multible arrays on a Smart Array controller.
The RAID level is defined wen creating the logocal drive(s). So you can have different RAID levels in the same array.
Mostly the Arrays is confgured for 1 Array and 1 Logical Disk.
Do recheck, using ACU / ADU and Insight Diagnostics, its all on the Smart Start, and if You run the Smart Start from a USB memory Stick, then you save the logs. HP got a greate toll for creating SS on a USB memory stick, you will find it in the Tools/Utility section, along with drivers and FW download.
Here's what you need to check.
Logical drives, enabled and OK!
"Boot order" You need to check, that the Smart Array is selected as Boot controller.
Again!.
What is the number of Physical disks?
What is the RAID level. (RAID 1+0, using 2 disks is RAID 1. HP use the term RAID 1+0)
Wich Disk was Reportet bad?
Wich physical disk did you replace?
Was the Spare disk, brand new and Unused!
Here's a theoritical senario:
2 Physical disk's
1 Array, using both disks
1 Logical Drive 1+0, using all available space in the Array.
Disk 1 is reportet bad.
Customer shut down server.
You replace the first disk (That would be disk 0 !)
You poweron the server.
Disk 1 reappear as good (This does happen from time to time).
Another theoritical Senario (This is far out, but possible).
2 Physical disk's
1 Array, using both disks
1 Logical Drive 1+0, using all available space in the Array.
Disk 1 is reportet bad.
Customer shut down server.
You replace disk 1 (the bad)
The Spare disk has been configured but with no O/S, and it has a newer time stamp, so it will become source disk, and it will copy from the spare to the "old".
This is why I don't understand why anybody, choose to do a "cold" replacement of hot swap drives, in a ProLiant server with a Smart Array controller.
If you got a RAID 1, and if you could have replaced the wrong disk.
Power down server, remove both disks (Take good note, on wich bay each disk came from, and wich is the spare).
Insert the disk you replaced, put in the Bay it came from. If it start up, leave it in interim recovery mode, and if OS boot, then put in the spare disk. Do be carefull, it could be your last chance.
This is why it would like to see some screen shots or ADU log.
BR
/jag
Array now rebuild from the "failed" disk, but it may be corrupt OS due to earlier failure. And it doesn't boot!
Keep the disk that you pulled out safe!!!
Ok.
I suppose the initial cold boot was unsuccessful.
Using a larger drive is OK.
It is possible, that one of the two other drives, got some hard read errors. If so, then the RAID is gone.
Lets see the ADU report.
On the other hand, if the status of the Logical drive is good, in the Array Configuration Utility, and you don't find any HW errors on the drives, then it is the O/S that has failed.
But without logs, its all a guess.
BR
/jag