Hardware is ready, What tests shall we run?

I dont' see the phrase "Should I Configure a RAIDZ, RAIDZ-2, RAIDZ-3, or a Mirrored Storage Pool? " at that zfs mailing list URL.

Googling for that phrase, I found http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide#Should_I_Configure_a_RAIDZ.2C_RAIDZ-2.2C_RAIDZ-3.2C_or_a_Mirrored_Storage_Pool.3F

At the URL you posted in message #26, I found references to using '3, 5, or 9 disks' arrays, but early in the discussion. When reading further into the posting, I concluded there is no recommendation against not having an 8 disk raidz2 array. The issue discussed at the start of the post seems to be about rounding and skipping sectors. Reading later, it seems that that issue it not as big an issue as it was once or as it was once perceived.

Am I reading it wrong?
 
dvl@ said:
I dont' see the phrase "Should I Configure a RAIDZ, RAIDZ-2, RAIDZ-3,
Click to expand...
It's right there - paragraph 1.2.4 on this solaris internals web.

Mailing list explains what is the optimal disk amount in vdev of certain type and why (it's not saying what not to use, but rather explains the optimal size).

Anyway, you'll have your disks - you can do your tests and verify it yourself. I gave my 2¢.
 
dvl@ said:
Hmmm, how does this work in conjunction with BIOS boot devices?
Click to expand...

Two separate things. BIOS / UEFI will boot from the default device or the device you tell it to boot from. gpart(8) says it will look for partitions, but doesn't say anything about drives. I really wish there was a man page for gptboot.
 
A few weeks ago, I added some information about how gptboot and gptzfsboot work in the -CURRENT version of the gpart(8) man page. I have not yet MFCed it, because after doing it I realized that it should really be in separate man pages... which I myself have proposed before, but forgot.

It's been suggested that gptboot is very similar to the old MBR booting and could be described in boot(8). gptzfsboot needs a separate page. A thread from the freebsd-doc mailing list starts here.

If you can help on details or even just suggesting an existing man page to use as a template, please PM or email me.
 
You must log in or register to reply here.
Back
Top