Journaled or un Journaled

[Bob Zelin]

Tom Wolsky writes –
I have to say that the Apple team recommendation when this first came up was to journal all your drives.

REPLY –
I was told years ago by the Apple Enterprise Group (when being shown the XServe RAID for the first time in Miami) that Journaling should be DISABLED (OS-X Extended – no journaling). I am not questioning what you were told by the “Apple team”, as since that time, I have been given mis-information by Apple support, which was corrected (on Apple products) by the AJA support team.

No information should be taken from any “support group” unless they SPECIFICALLY deal with video media files (that are large files that run at very high data rates). Someone addressing backing up photos and accounting databases has no knowlege of the requirement for our industry – even if they work for Apple. You want REAL answers on Apple products – only the Apple Enterprise Group knows what is going on. The “geniuses” at the stores have not a clue.

Bob Zelin

[Tom Wolsky]

I was referring to the FCP group, Brian Meaney specifically, though this was some years ago. Probably pre-Xserve.

All the best,

Tom

Class on Demand DVDs “Complete Training for FCP6,” “Basic Training for FCS2” and “Final Cut Express Made Easy”
Author: “Final Cut Pro 5 Editing Essentials” and “Final Cut Express 3.5 HD Editing Workshop”

[Jeremy Garchow]

[Bob Zelin] “only the Apple Enterprise Group knows what is going on. “

Huge Systems (now called Ciprico) recommended journalling be turned on for their arrays.

How i really feel is that no one really knows and it’s all just voodoo anyway.

Jeremy

[Rafael Amador]

My only direct experience with a LaCie FW800 and FC on CAPTURE NOW>
Whith the HD Journaled took few seconds “Allocating Memory”. And I think I’ve got one of those .av temporary file.
When disabled Journalling, CAPTURE NOW instantly.
If I would have a system where the files are splits between different HD, I would have it always Journaled.

Mac OX 10.5.2-FC 6.02-QT 7.4.1
G5 2x2Gh 4GbRAM-BlackMagic Extreme
PMBP 17″Core2Duo 4GbRAM-AJA ioHD
JVC DTV-17″
SONY EX-1 . SONY PD170
..and always a big mess on top of the table.

[Tom Wolsky]

.av is usually a caused by how the drive is formatted, i.e. non-Mac OS Extended. Allocating memory occurred in older versions of Final Cut and is not related to journaling. The application would assess available storage before beginning capture.

All the best,

Tom

Class on Demand DVDs “Complete Training for FCP6,” “Basic Training for FCS2” and “Final Cut Express Made Easy”
Author: “Final Cut Pro 5 Editing Essentials” and “Final Cut Express 3.5 HD Editing Workshop”

[Jeremy Newmark]

Dulce Systems also recommends journaling their arrays as well. We’ve always journaled both our Huge and Dulce arrays (per manufacturers instructions) and performance on those systems has always been outstanding. Just tested one of the Dulce arrays that was at 59% capacity in Raid 3 journaled and got 510.2 MB/s read speed.

best regards,
jeremy