1 Rookie
•
1 Message
0
34
Commonly Observed Failures on R760 Servers
Hello,
I am seeking additional information on common failures observed with the R760 hardware platform. When purchasing from the Dell online store, there are a few options available:
RAID/Internal Storage Controllers:
- Dual Controller, Front HBA 355 Rear Load
- Front PERC H755 Front Load
SSD Hard Drives:
- Mixed Use
- Read Intensive
From the perspective of expected failure rates, which option is more prone to issues and why?
Thanks,
tarun172
DELL-Charles R
Moderator
Moderator
•
3.5K Posts
0
June 10th, 2024 18:25
Hello,
I think you are inquiring about MTBF for an R760.
Dell no longer provides MTBF specifics for Server systems. I don't believe they have since around the 12th generation of servers. My understanding is that there were far too many variables present to accurately determine an all-encompassing timeframe.
I would say, though, as long as you have active support on the system, may it be 3yr or 5yr ProSupport, we will do everything to keep the system up and running.
I did find this document on hard drives you may like to review:
Hard drives typically have MTBF. Example here:
Enterprise class SSD’s are rated at 2 million hours MTBF (mean time between failure) versus enterprise class 10K & 15K RPM SAS hard drives at 1.6 million hours MTB
https://dell.to/4ecXCAd
Other than that I don't have any documentation on failure rate for systems or components.
Origin3k
4 Operator
4 Operator
•
1.8K Posts
0
June 10th, 2024 21:14
@tarun172
i dont care because with a 3,5,7Y ProSupport NBD/4hMC support contract i just open a #SR when something breaks.
But to give some context.. a HBA 355 is a simple and stupid Passtrough controller without Cache, Batterie and NO Raid at all. Less parts so less chance that something breaks. This Controller is for HCI solutuions or when speaking about external storage for connecting a Powervault ME5 or Tape(ML3, TL1000).
A Mixed use SSD have most likely more reserve blocks because of 1-3x TBW per Day compared to a RI one.
Regards,
Joerg