Basic PCI (SATA RAID) question

I note that my powerMac G5 has three unused PCI slots -
My aim is to gradually add as much SATA storage as I can -
I see that there are PCI SATA cards that control up to four drives - meaning from a single slot?
I am assuming that means theoretically I could add up to 12 drives in the three PCI slots.
I was thinking about using one for one of those internal RAID structures and another for an external RAID structure like the TRANSITL...
what do you all think?
Thanks
w

According to the manual, the controller can be configured with both raid drives and non-raid drives.

Similar Messages

K8N Neo Platinum nf3 250Gb SATA RAID question?

Hi all I'm ready to make the move to an AMD A64 setup from my currnet P4.
You all know what a tough job it is to find the right motherboard for an A64
After much research I think the K8N Neo Platinum is the board for me, but there's one question I can't find an answer too. So I'm turning to this forum. Thanks much for any help.
I currently run a dual RAID"0" setup. Two WD360 Raptors as boot array off the Si3114 on-board controller and two WD740 Raptors as a game \ power apps storage array off the ICH5R southbridge.
My question is; Is it possible to run this drive setup off the K8N Neo Platinum's 4 SATA controllers? Two seperate RAID"0" arrays with one bootable.
thank you-Mike

I decided to go with a S939 instead....I know me...and I'll want one as soon as I got the S754 up & running
I ordered a K8T NEO2-FIR...Its got the on-board Promise SATA RAID controller + on chip VIA RAID...so it should suit my drive needs perfectly

MSI Neo-FIS2R build questions! & SATA RAID questions!

This is going to sound like a stupid question. And I'm not even sure that I know what I am asking.
I've built two computers so far. One with an MSI K7N2G-L and another with an MSI K7N2G-ILSR. Both nForce2 motherboards with AMD processors.
Here's what I'm getting at... I'm planning on building a new machine with either the Abit IC7-G or the MSI Neo-FIS2R (both 875P boards obviously).
Now, when I built the two nForce2 boards it was really easy. I put all of the components together, turned on the machine, the bios auto enabled settings, I put the windows xp pro cd in the cd drive and formatted the hard drive for NTFS, I then installed the OS and booted the system! Then I intstalled the drivers fromt the MSI CD. Ran Live BIOS and flashed to the most current motherboard BIOS. SIMPLE! Everything worked fine.
Here's my question. For the 875P system will everything pretty much happen the same way? Or do I need to do additional things? One of my main concerns (especially if I go with the Abit IC7-G over the MSI) is flashing the bios. Do I need a floppy drive or something? I've never flashed a BIOS outside of the Live BIOS utility. I don't want to put a floppy drive in my system! What are my options here?
Not that I want to do it, but if I needed to (say with the Abit board) HOW DO I FLASH THE BIOS WITHOUT USING THE LIVE BIOS UTILTY?
Bottom line is, I'm building this system for someone else and I want it all to be a painless experience (especially if they are looking over my shoulder).
One final question. This may sound even more stupid than the first question. I'm purchasing SATA drives ONLY. I'm not purchasing any IDE drives. So, here's my question...Can I boot from a SATA drive? What if it's in RAID 0? From the posts in the forums it appears that the SATA and RAID on these 875P motherboards either doesn't work or isn't very reliable (may potentially lose data). IS THIS AT ALL TRUE?! I'm stupid when it comes to RAID and SATA. Any help in this department would be appreciated.
Thanks.

Quote
Originally posted by ZippyGaloo
1. If I only install one SATA drive I have to set it up as a RAID anyway right? Wrong?
2. If I install two SATA drives I have to set it up as a RAID as well right? Wrong?
3. If I install two SATA drives and set up a RAID
(either 0 or 1) which drive does the OS go on?
I have never built a raid array (as yet) and have never owned a SATA disk (as yet), but from what I have read...
RAID is a method of connecting several disks together so they perform as a single disk. That means, in response to your points above:
1) If you install only one drive (SATA or not), it will not be set up as RAID.
2) If you install two SATA drives, you have the option of using them as two individual drives OR setting them up in a RAID 0 or 1 configuration.
3) Ok, RAID 0 is known as "striping" - this method makes two disks look like one big disk, that works twice as fast as the individual drives. Every time the PC writes data to the drive, it sends the first bit of data to drive 1, the second to drive 2, then drive 1 again etc etc. This speeds up the disk read/write time, as the two disks can both work simultaneously. To the OS though, the two drives appear as one. The OS will be spread across both disks - it needs both of them connected to run, take either disk out and you'll be left with half an OS (that obviously won't work)
With RAID 1 (known as "mirroring"), you still use two disks. You will only have a useable capacity of the smallest disk however (using two 40gb drives only gives you a total of 40gb of space. with RAID 0, two 40gb disks will make one big one - nearly 80gb large {I think the RAID system itself uses a bit of space}). The advantage with mirroring, is the second disk holds an exact copy of the first. If one disk goes bang, you have a duplicate copy on the second - so, to answer your point above, the OS will reside on both disks.
To summarize, RAID 0 is good for increasing speed; RAID 1 is good for increasing protection of your data as you have two copies incase a drive gives up. To get the best of both worlds you need RAID 0+1 (this method needs 4 disks though, 2 striped - then 2 mirroring the striped).
There is a lot to RAID - just search the net for some manuals if you're interested, hope this gives you an idea though (providing I've got it right!)

NEO Platinum (754 nForce3) SATA RAID Question

Because my ASUS Mainboard died yesterday, i am planing to buy the NEO Platinum for 754 socket. As i can see in manual, there is option in BIOS to disable or enable RAID function for each SATA port. There are 2x2 separate SATA ports, but only one SATA Controller.
I have 3 SATA Harddisk - 2 are in RAID0 Stripeset, and one drive as normal, standalone drive. My question:
Is it posible to connect the 2 RAID0 drives on SATA ports 3 and 4 and use them as RAID0 Stripeset, but at the same time to connect the 3rd standalone drive on port 1 or 2 in normal mode, also NO RAID use?
Theoraticaly, ase in manual - it should be posible (because you can switch the RAID function on or off for each SATA port, but on the other side - phisicaly - its only ONE SATA controller on board.
I need fast reply, so i can order the board in webshop. Thanx.

Thanx people, but now i habe another question. On my ASUS board i have connected 2 RAID drives on Silicon Image RAID controller - but the NEO Platinum have nVidia RAID controller.
Can i migrate with the RAID drives to another RAID controller without loose of data? I mean, i know that i must install again WinXP, thats no problem - the thing is, i want to keep my data on other partitions untouched. So, i have to boot to nVidia RAID options - to set a new Stripeset, but can i also mark the set as "healthy" and use it normaly (offcourse with fresh XP install on C:)?

Promise 378 SATA Raid question

Can someone tell me if my SATA drives are setup correctly given the details below? The only driver that works is the FastTrak 378 (not the SATA 378 driver). I want to make sure I am taking full advantage of my SATA drives. In the Promise setup it shows them operating as "Mode U5". What is this?
Any help appreciated.
My Drive COnfiguration is as follows:
SATA Drives are on SATA3 & SATA4 (Promise 378 Controller)
(as RAID 0 for performance)
Primary IDE Master - Sony DVD/RW
Primary IDE Slave - not used
Secondary IDE Master - ASUS DVD ROM
Secondary IDE Slave - ATA 133 Drive bay (Empty)
3rd IDE Master&Slave - not used
On Board Promise settings
FastTrak 378 BIOS Ver 1.00.0.27
2+0 Stripe - Functional
HIT CTRL+F for setup and
(in the setup it shows RAID 0 Drive Array as Mode U5)
Bios Settings
Boot Device Priority
1 - Floppy
2 - ASUS DVD ROM
3 - BBS-0(RAID):FT 378 Ary 1
On Board Promise IDE - As RAID
On Chip ATA's Operation Mode - Legacy Mode
ATA Configuration - PATA only
SATA Keep enabled - no
* PATA Keep enabled - no
PATA channel selection - both
* Combined Mode Option - PATA First Channel
* SATA Ports Definition - P0-3rd/P1-4th
* Configure SATA as Raid - no
(where * is greyed out)
Bios sees both DVD ROM & Sony DVD/RW
Boot to CDROM
Start Windows 2000 install
F6
"S"
load Promise FastTrak 378 Controller
Windows 2000 setup continues...

Everything looks good to me. Like Danny said though, you will need to change Bios to "Native Mode" for the Intel controller if you ever intend to use the Serial connectors. If not you're fine.
Also it's not clear from your post if you understand that you are using the 2 SATA drives as a Raid array. This gives you better drive performance but increases the chance of losing data. MAKE REGULAR BACKUPS.
The Promise SATA drivers are for using the Serial1&2, IDE3 connectors with single/separate drives where Raid arrays are not used.

SATA/RAID Question

Hi, admittedly, I'm a newbie to SATA and RAID in general. I built a new PC a couple of months ago, and have had consistent problems with the RAID controllers.
My System:
MSI K8N Neo Platinum
AMD 64 3400+
Seagate Baracuda 200 GB 7200 rpm
About once every 4 or 5 boots, the system hangs when detecting the RAID array. Once every two boots or so, the NVIDIA RAID controller will have a critical error just after boot up into Windows.
Since I only have one drive, is the RAID controller necessary? Why is it hanging like this for me? Any suggestions?

when u installed did u do the F6 thing to load the drivers for raid? With one drive you shouldnt have .... Raid is worthless unless you have 2 drives .... But I would like an answer to teh above quesition as I have the same problem with my 2 WD Raptors ....
Thanks
Lan

Questions about streaming disk, firewire and SATA raids.

I have two internal drives, one for applications/system and one for audio, which had been suitable up until recently. I recently added Ivory, and some addons to the BFD drums. The BFD Deluxe has significantlly more velocity layers, and is placing a strain on computer and drives.
I moved the BFD drum data onto an external firewire 800 (because of data size) The BFD drums seem to be having a hard time keeping up, (it glitches and stutters).
I have 3 gig of ram, so I guess I'll add more ram. But I'm unsure about SATA raids. Is it better to add an external firewire RAID?... Mac Guru, has some reasonably priced kits. Has anyone had experience with them?
There is a 3 drive bay which you can put inside your G5, but I have concerns it will draw too much power and generate too much heat.
Lastly, if I buy a 4 bay external raid, can i create a 3 drive raid, and keep 1 one drive as a seperate drive (do I have to stripe all drives in one enclosure, or can they be seperate?
Any insights would be helpful.. thanx

depending on whether you use eSATA or FW, you have differnet options as to how you mount the drives as volume(s) to your computer. FW pretty much limits you to a single logical volume, although it could be RAID-0 or in some rare instances, RAID-5 with certain enclosures.
eSATA, again, depending on the specific enclosure, can mount all the drives as a single volume, but you may have the option to mount multiple logical volumes... like the 1 RAID-0 and 1 independent volume like you mentioned.
earlier tonight i recommended this drive to someone else for a laptop application...
http://www.lacie.com/products/product.htm?pid=10724
for a desktop application, you would probably go with their 3.5" solutions since buss power is not important to you.
this might not be accurate, but this is my understanding of highest read/write performance to lowest in terms of general specs (certain products may have advantages / dissadvantages depending on the implementation) all RAID-0 volumes are assumed to be 2 drive RAID, although it is technically possible to do more with certain hardware.
1) RAID-0 eSATA
2) RAID-0 FW
3) RAID-5 eSATA
4) single eSATA
5) single FW
6) RAID-0 USB2
7) RAID-5 FW
8) single USB2
9) RAID-5 USB2
RAID-5 is a real wild card here because a 3 drive image is really not the intended configuration for RAID-5... more drives is preferred before you start reaching theoretical efficiency and the actual XOR engine or lack of one can drastically affect your performance levels.

K8n Neo Platinum non-booting SATA RAID setup question

I've spent several hours searching an reading trying to find out how to setup a non-bootable SATA RAID. All I can seem to find are posts about bootable installs using F6 and the drivers on a floppy.
I have setup the disks in the bios an defined the array an everything checks out. But when I boot back to WindowsXP it only sees 2 drives that it cannot find drivers for even if I point it to the correct Nvidia directory. I attempted to just reinstall the drivers but that caused a Bluescreen from a corrupt driver file that I then had to go into the repair console to copy from a floppy.
The manual an a couple of posts here say that I should go into Admin Tools-> Disk Management an it will then popup a wizard. But I'm not getting that far.
I currently have the disks on SATA 1 and 2 but will move them tonite because I've read its better for them to be on 3 and 4.
This is on a K8N Neo Platinum 7030 on Windows XP SP2. If anyone could help or just point me to where I can find help it would be greatly appreciated.

When the raid controller is enabled in bios and you start windows you can install the nvidia raid driver
from within windows .
Use the add hardware wizard from control panel .
Start the add-hw wizard .
Yes i have connected the hw - next .
Add a new hw device (bottom of the list ) -next .
Install the hw that i select manually from a list - next .
Select scsi/raid controller - next .
Choose have disk .
Then browse for the location of the nvraid.inf file

Problems booting from onboard SATA with PCI SATA controller installed

I have a K7N2 Delta-ILSR motherboard (BIOS v 7.8), and my Windows XP installation is on a single drive attached to the onboard Promise 378 SATA RAID controller. I have a PCI Promise TX2200 SATA RAID controller installed, currently in PCI slot 5. The OS boots normally off the onboard controller if I do not have my RAID0 array attached to the PCI controller, but I get disk boot failure messages if I have the RAID0 attached to the Promise TX2200.
I have tried putting the PCI controller in different slots to change IRQ channel routing, tried changing boot order in the BIOS, and even tried assigning specific IRQ priorities to the slot with the Promise TX2200.
My basic question is this: how do I get this motherboard to boot from the onboard controller while I have my RAID0 attached to the add-on PCI controller?

Well, Promise got back to me. They were insightful enough to tell me what I already knew and that they didn't support what I was trying to do:
Quote
Case Problem: I have an MSI K7N2 Delta-ILSR Socket A motherboard with an onboard Promise FastTrack 376 SATA RAID controller. I wish to continue booting my OS from a single SATA drive on this controller, while using a RAID0 array on my FastTrack TX2200 controller. When the TX2200 is installed and the array is attached, it is detected as C: by the motherboard BIOS and the active boot drive as D:. The TX2200 is detected during boot (after POST) first, the onboard contoller second. I have tested the TX2200 in...
Case Solution: Hi Sorry for the late reply. Are you by any chance running both the FT 376 embedded controller along with the FT TX2200 if so than you will run into bios or driver conflict when both controllers in the system. Promise only recommend and support one cards pre system. Thank you.
... and MSI
Quote
Thank you for contacting MSI Technical Support.
As onboard SATA controller and PCI controller are both promise. It exits compatibility between them. You could try the following procedures to check if they could solve the issue:
1. Please contact the PCI card vendor to ask if there is relative firmware update
2. Please disable all the onboard devices which you don't want to use in bios setup.
3. You could try different MB bios version to have a check. You could download these versions from here.
Please feel free to let us know if you still have any further issues or inquiries
So that leaves me 3... downgrading my BIOS is not worth the risk just to make this work. Looks like its time for a full migration plan so this issue becomes moot.

Ext Drive Prob:Upgrade 10.3.9 to 10.4.3 SeriTek 1VE4 PCI SATA cntlr issue

Hi,
Just wondering if anyone else has reported issues with the Firmtek PCI SATA controller during upgrades to Tiger.
I did a basic Tiger install on a clean drive, then migrated my user account & apps, then applied 10.4.3 combo update then installed FCP Suite & used system update to get the remaining updates it recommended. (security fix & FCP suite component updates.) Did this on a G4 1G DP MDD system 300/16 PATA Maxtor boot drive and on a G5 2.5DP 250/8 Hitachi boot drive system and both exhibit the same condition regarding external SATA drives.
Basically, the card still works and the drives show up on the desktop, I just can't right-click and "eject" them for hot-swap. (which I used all the time under 10.3.9 to move video files from system to system.) System profiler can't find the external drives attached to the Firmtek card, but I saw that was a known bug. If I physically power down the external enclosure, or remove (hotswap) one of the drives, I still get the old dialogue box about SATA configuration has changed and everything appears to work properly. This just sounds scary since the drives aren't dismounted (ejected) properly. Also, I have noticed that sometimes only one of the two drives in the enclosure is detected at startup (neither of the drives is the boot drive).
Just looking for answers. I have had no problems whatsoever with the Firmtek stuff up til now.
Paul
Here's the reply Seritek gave me (and I did the firmware update to 5.1.3, but that didn't fix the eject problem).
From: [email protected]
Subject: 1VE4 fw. vs. 5.1.3
Date: December 16, 2005 7:52:26 AM PST
"System profiler does not show the external drives under ATA or Serial ATA"
This is a known bug from Apple, and we have reported to Apple. A firmware up date won't help. BTW: we have the latest firmware vs. 5.1.3 . You're welcome to update the firmware. Please make sure to read the note before you update the firmware.
Regards,
FirmTEk, LLC
From: Paul
Sent: Thursday, December 15, 2005 11:02 PM
To: [email protected]
Subject: Technical Support Question 1ve4 pci card
Hi,
I have a seritek 1ve4 pci card connected to a 2 bay external enclosure.
Today I upgraded from osx 10.3.9 to 10.4.3.
Now my external sata drives show up on the desktop, but if I right click
on them I am unable to "eject" since that option does not appear to let me
do a hotswap. This always worked under 10.3.9. Do I need a firmware upgrade?
This same behavior happens on my G4 dual 1G MDD system and
also a G5 dual 2.5G system
Here is the system profile for the pci controller card
SeriTek/1VE4 v.5.1.1,03/14/05, 23:42:20:
Name: Seri-Tek1VE4
Type: ata
Bus: PCI
Slot: SLOT-3
Vendor ID: 0x8086
Device ID: 0x3200
Subsystem Vendor ID: 0x8086
Subsystem ID: 0x3200
ROM Revision: 5.1.1.1VE4
Revision ID: 0x0000
System profiler does not show the external drives under ATA or Serial ATA,
yet they show up on the desktop and in finder
Thank you for your help
Paul
G4 DP 1G MDD, 1.75G RAM, G5 2.5G DP 2G RAM Mac OS X (10.4.3) Maxtor 300/16 PATA boot drive, Hitachi 250/8 SATA boot drive
G4 DP 1G MDD, 1.75G RAM, G5 DP 2.5G 2G RAM Mac OS X (10.4.3)

I have the same problem with no recognition of the Seritek /1V4 card. After numerous reinstalls, I got it to recognize it with only two drives attached, but it didn't last and now I can't get it back. Very frustrating since the older Seritek 2 port card works fine.
Any suggestions would be very much appreciated.

KT4 Ultra SATA RAID Setup

I'm having trouble getting the system to recognize my drives on the SATA RAID controllers. I am *not* using IDE 3, I'm using the two serial ATA ports. I have an IDE drive hooked up as my main drive and am adding these two as a RAID.
I have 2 80GB Maxtor drives (non-SATA) with Soyo converters attached. I've plugged one drive into each of the SATA ports.
My first question is: what drive setting should I use? Should both drives be set to Master since they're on their own ports, or use Cable Select?
Playing around with the settings gets me mixed results:
- I get an error message that the PCI IRQ setup should be checked that bus mastering is turned on (it is)
- Or I can only see one drive showing up as Master (and it's always drive 2)
I've checked connectors, power plugs, etc., and everything seems to be hooked up ok.
Any ideas?

cannot find it now but one guy with convertors found they had jumpers on them had to be set for ata133 drives to work,honestley cannot recall make,but it was not highpoint
master should be right i would have thought
one on each lead to the sata terminals

Neo2; SATA thoughts/questions

Hello you all,
Ive been thinking about upgrading my fileserver (see signature) to an Athlon64 3500+ running on a MSI K8N Neo2 (got one on with this machine, love the board). As im going to have a total of five SATA HD's, Im going to need a PCI SATA controller card to satisfy my needs. Now to my thoughts/questions;
The total amount of drives will be 2 IDE HDs, 5 SATA HD's, 1 DVD and 1 CD-RW. Anything that I should think about other than a good PSU? (I can use two PSU's if needed, im moving from the ThermalTake Xaser III to a Coolermaster Stacker) So my question is, if there is any known problems with PCI SATA cards, if so any certain cards? Any recommendations / warnings? Any thoughts, ideas, comments welcome.

try looking into your bios settings that all the SATA are enabled and that the DMA is enabled as well this could help your windows to boot. and if you are running a fileserver why not install windows 2003 server or a 2000 server. you'll have more options and a better controlle over a software raid controller between more devices. (a hardware raid dontroller is better and is more stable.) if i was you i would use an raid 5 controller (but i would use an hardware controller) beware it is possible that you have to install the raidcontroller in one of the first stages in the windows install. by pressing F6 (it apears in the lower left corner when you are starting the setup.)
if you have ferther problems post it here everyone will thry to help

[nForce] PCI SATA Card...Will it work?

I'm planning on installing a PCI Sata card to run 2 WD 80Gb drives...My question is, will I run into any problems when trying to install Xp??? I know that the card came with a CD, but will windows recognize the card and load the drivers automatically? Thanks in advance and sorry if this a noob question!

if you look on the CD that comes with the card, there maybe some drivers that you have to copy to a floppy disk, for windows xp
as you startup windows setup, it prompts "Press F6 to install third-party SCSI/RAID controller" (or something like that). then insert this floppy when prompted
maybe if you tell us what SATA card you have / intend to buy, someone can offer better advice...

No Raid BIOS on nforce 650i (x4 PCI-express raid card)

Motherboard Model: MSI P6N SLI
BIOS Revision Number (if known): 2.3
CPU/Speed: 3000Mhz
RAM Manufacturer/Type/Module Size: 4x G.Skill P2-6400CL5d-2GBHQ (DDR2-800 1GB sticks)
CDRW/CDROM/DVD Manufacturer and Spec: none (external USB)
Disk Drive(s): Manufacturer and Spec: 8x500GB Seagate 7200.10 (ST3500630AS)
Video Card: Manufacturer and Type: Nvidia Geforce 8600 GT
Sound Card: Manufacturer and Model: onboard realtek
NIC Manufacturer/Model: Onboard nforce gigiabit
Power Supply Brand and Wattage: Rosewill 600w
Operating System: Linux-2.6.22.3
Anything else you think is relevant: Using a PROMISE SuperTrak EX8350 RTL PCI-Express x 4 SATA II Controller Card.
Ok, here is my problem:
I can not, for the life of me, get this PCI-Express raid card to show the raid's BIOS screen (or get my BIOS to see the controller so I can boot off it). Basically this is needed to setup the array, see the array status when the system boots, and boot off the array, etc.. If I was running windows I would be totally screwed for booting off the array but with linux I can boot off of it as I can load the kernel (only the kernel) with the drivers on it from another boot drive and boot off the array.
I had to put the raid controller in another one of my comps (had to put a PCI vid card in that one as it only had one PCI-E x16 slot) to setup the initial array. The controller works perfectly fine with this mobo (as it is detected/acessible from linux) the only problem is when my system POST's I have no way to manage the RAID array which is quite annoying. I already tried updating to the newest BIOS for my mobo and I think it is something specific with this mobo or something as I had no problems using my sister's comp which is an AM2 socket mobo (also nforce chipset) which is the same brand (MSI).
Some things I have tried already:
Upgrading to the newest BIOS version
Taking out the geforce 8600 gt and putting in a PCI vid card and trying the raid controller in each of the x16 PCI-E slots (running in x8 mode because the board is set to SLI mode (the raid controller requires atleast a x4 slot).
Any ideas or am I SOL?
Also, maybe this should be in the BIOS section?

Just thought I would mention, this board as listed as a compatible product for my mobo here:
http://global.msi.com.tw/index.php?func=prodtestreport&prod_no=1141&maincat_no=1&cat2_no=170&cat3_no=#menu
If you click on SCSI controllers it gives you a link to here:
http://global.msi.com.tw/uploads/test_report/TR2_1141.pdf
And my card is listed on the very bottom entry of that pdf file. Not having any access to the RAID controller's BIOS is pretty lame.

Losing connection to SATA RAID

I've got a 1TB 4 disk SATA RAID connected to my Mac Pro via a Sonnet Tempo PCIe card. Right around the time of the 10.5.5 update, I started having a problem where Adobe After Effects and Photoshop, if left open for a while, would eventually lose their connection to the RAID, which I use as a scratch disk for both apps. This causes both apps to give me an error message "no such volume etc." that keeps coming back repeatedly after I click"ok," so I have to restart each app in order to continue working. I've also noticed that the folders that I've placed in the "places" section of the left hand column disappear every time this happens (those folders are located on the same RAID in question.) When I get these errors, the RAID is still visible on the desktop, and I can access it normally with the Finder and other apps, which leads me to believe that the connection to the RAID is getting interrupted briefly, and then it comes right back (just my guess.)
This RAID has always functioned flawlessly, and I've made sure I have all of the most recent drivers installed for the controller card, but the problem persists. Does anyone have an idea what might be causing this problem? I'd really like to avoid having to go back to 10.5.4 if I can.

Hi Mikael.
Please make sure to enable Multicasting within your router configuration, it is crucial for Airprint to function propertly. if you fail to find any of the settings below, you may contact your ISP for further help:
Enter your router configuration page (The URL should be the same as the default gateway address of the PC or the printer).
From the top menu, click Advanced.
From the left menu, click Advanced Netowork.
Under Multicast Streams, check the Enable Multicast Streams option.
Click Save Settings and follow any step you may see on the screen,
Reboot your router and check for any change,
Hope it helps,
Shlomi
Say thanks by clicking the Kudos thumb up in the post.
If my post resolve your problem please mark it as an Accepted Solution

Basic PCI (SATA RAID) question

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