sas – Read For Learn

How can a single disk in a hardware SATA RAID-10 array bring the entire array to a screeching halt?

August 10, 2022 by admin

I hate to say “don’t use SATA” in critical production environments, but I’ve seen this situation quite often. SATA drives are not generally meant for the duty cycle you describe, although you did spec drives specifically rated for 24×7 operation in your setup. My experience has been that SATA drives can fail in unpredictable ways, … Read more

Are SSD drives as reliable as mechanical drives (2013)?

August 5, 2022 by admin

This is going to be a function of your workload and the class of drive you purchase… In my server deployments, I have not had a properly-spec’d SSD fail. That’s across many different types of drives, applications and workloads. Remember, not all SSDs are the same!! So what does “properly-spec’d” mean? If your question is … Read more

In the following SAS statement, what do the parameters “noobs” and “label” stand for?

February 9, 2022 by admin

per SAS 9.2 documentation on PROC PRINT: “NOOBS – Suppress the column in the output that identifies each observation by number” “LABEL – Use variables’ labels as column headings”