Change a block size on HFS partition?

[CheesusRise]

Is it possible to change a block size? I have a RAID 0 partition dedicated to video capture. Having blocks larger than the default 4KB would benefit performance.

Could not find any options in neither Disk Utility nor Terminal’s diskutil command.

Thank you

 

[robbieduncan]

You certainly can't change the size without reformatting. If you decide to go that way might be useful to you...

 

[CheesusRise]

I knew I’d have to reformat, that’s not a big deal. Thank you very much for pointing me in a right direction.

 

[robbieduncan]

Let us know how you get on. I wasn't able to find any reference to people using this to get >4Kb blocksizes, rather to get smaller block sizes. I'm not actually sure bigger ones are supported...

 

[CheesusRise]

I’ll do it next week and will post results.

 

[MisterMe]

... Having blocks larger than the default 4KB would benefit performance.

...

Who told you that?

 

[CheesusRise]

Less overhead, more data can be read from a single block. In the past, I ran performance results on Oracle Databases and played with block size on Solaris. I saw difference in throughputs. Especially on large files. And the video captures - the intended purpose of a partition I am creating - are large files.