Write penalty

[Fellowship]

I need help with the phrase "write penalty", I found it in a text about DASD systems, and several kinds of disks, it is quite old, but I could not find the meaning or the translation

 

[Titi Hilda]

Hello Fellowship and welcome to the Forum

What is DASD?

"Write penalty" may refer to a penalty for writing/copying.

Saludos

 

[Fellowship]

Hello, and thank you. DASD stands for Disk Array Subsystem, as I said it is old information technology..
THE CONTEXT IS: The Write Assist Device used in (...) high-availability models has been replaced with the 1MB write cache to more efficiently manage the write penalty.

 

[Titi Hilda]

Hello Fellowship:

There are 2 entries in google under write penalty.

One is an explanation that follows found at: www.snia.org/education/dictionary/w/


write penalty
[Storage System] Low apparent application write performance to RAID arrays’ virtual disks. The write penalty is inherent in RAID data protection techniques, which require multiple disk I/O requests for each application write request, and ranges from minimal (mirrored arrays) to substantial (RAID Levels 5 and 6). Many RAID array designs include features such as write-back cache specifically to minimize the write penalty.

The other entry is a blog entry found at: archives.devshed.com/forums/research-131/ It may be a good idea for you to read the context.

Saludos