Use the 120 GB aout of the 2 fast drive just for everything you need. Partition it to three volumes:
1st about 10 GB for OSX + Classic and iApps which should be placed on starting volume for automated updates. 2nd for your apps (depending on your needs but 10 GB should be sufficient for the most). 3rd is 100 GB for data.
Once you've installed OS and apps take CarbonCopyCloner to store a snapshot of your start volume to the backup disk. Do the same with the second app volume. Use backup software to make incremental backups of your data daily.
After relevant changes of OS or app vollume store fresh snapshots.
I think this solution is shure and cheap and easy.
That sounds like a reasonable solution, however, everything that has to be done manually, is bound to be omitted or forgotten, posing yet another risk. As for what the previous post suggests, that would be a RAID 0+1 setup (ie 2 stripes being mirrored to 2 other stripes, for a total of 4 drives). The problem here is that your need for speed (RAID 0) costs you twice as much, because of the "twin" mirror setup (RAID 1). Which is probably why nobody uses that.
PC users (those so called hardcore gamers/computer freaks) unfortunately always trade in security for speed, thus choosing a simple 2 drive RAID 0 option, while professionals would probably go for a RAID 5. Needless to say that serious companies backup their stuff to tapes or optical media too.
As for SCSI RAIDs...hehe if you can AFFORD that, go for it. IDE RAIDs just make a lot more sense to most people now. A friend of mine is going to solve his problem like this: A small disk for the OS, 2 medium disks in RAID 0 for apps and one large disk for data. You could also choose to put the OS and data on the same disk, but that again poses some risks (as the OS is probably the most disk active "application" in any modern computer). Sure it's not the best solution, but at least he'll get all the space.
RAID 0: 160GB, fast but twice the chance of things going tits up.
RAID 1:80GB, slow but total data security.
No RAID: 160GB, slow but 50% data security.
I decided to go for:
OS & Apps on a single 80GB 7,200 drive on the UltraATA/100 channel. Data on a 160GB RAID 0 strip set, with backups manually onto DVD-R by simply using the "Date Modified" option in the Finder.
And so with fingers crossed and eyes closed, I run across the road.
<strong>That sounds like a reasonable solution, however, everything that has to be done manually, is bound to be omitted or forgotten, posing yet another risk. As for what the previous post suggests, that would be a RAID 0+1 setup (ie 2 stripes being mirrored to 2 other stripes, for a total of 4 drives). The problem here is that your need for speed (RAID 0) costs you twice as much, because of the "twin" mirror setup (RAID 1). Which is probably why nobody uses that.
PC users (those so called hardcore gamers/computer freaks) unfortunately always trade in security for speed, thus choosing a simple 2 drive RAID 0 option, while professionals would probably go for a RAID 5. Needless to say that serious companies backup their stuff to tapes or optical media too.
As for SCSI RAIDs...hehe if you can AFFORD that, go for it. IDE RAIDs just make a lot more sense to most people now. A friend of mine is going to solve his problem like this: A small disk for the OS, 2 medium disks in RAID 0 for apps and one large disk for data. You could also choose to put the OS and data on the same disk, but that again poses some risks (as the OS is probably the most disk active "application" in any modern computer). Sure it's not the best solution, but at least he'll get all the space.
G-News</strong><hr></blockquote>
You should understand that RAID 0+1 is used where speed is of the essence and coupled to disk capacity and reliability. There are many scientific applications where this makes sense but you need the $$$$ to do it. With today's disks' performances and capacities, I don't think you really need disk striping for the OS and applications. Data storage for bandwidth intensive applications like video editing will definitely benefit from RAID 0. Adding RAID 1 to this would only secure some peace of mind as one would, and should, normally back up their data daily.
Now, does anyone have a solution for hardware RAID 1 for the powermac?
Yes I have set up two RAID stripe sets. The first sits on the UltraATA/100 channel, 2x 80GB 7,200rpm Maxtor drives. The second sits on the UltraATA/66 channel, 2x 80GB 5,400rpm Maxtor drives.
Accessing/launching data and apps is noticable faster, and copying data between RAID has to be seen to be believed - I'm getting about 100MB/s give or take. I'm currently backing up to DVD-R, and I'll buy a dedicated RAID controller for RAID 0+1, once I get around to it.
However, I also installed 2GB of RAM around the same time, so it's hard to figure out if that had any impact.
Comments
2 cheap smaler drives in RAID 0 (ex.: 2 60GB 7200 rpm dives) for OS and data and use for everything.
1 big, slow and cheap additional backup drive (ex.: 120 GB 5400 rpm drive).
Use the 120 GB aout of the 2 fast drive just for everything you need. Partition it to three volumes:
1st about 10 GB for OSX + Classic and iApps which should be placed on starting volume for automated updates. 2nd for your apps (depending on your needs but 10 GB should be sufficient for the most). 3rd is 100 GB for data.
Once you've installed OS and apps take CarbonCopyCloner to store a snapshot of your start volume to the backup disk. Do the same with the second app volume. Use backup software to make incremental backups of your data daily.
After relevant changes of OS or app vollume store fresh snapshots.
I think this solution is shure and cheap and easy.
PC users (those so called hardcore gamers/computer freaks) unfortunately always trade in security for speed, thus choosing a simple 2 drive RAID 0 option, while professionals would probably go for a RAID 5. Needless to say that serious companies backup their stuff to tapes or optical media too.
As for SCSI RAIDs...hehe if you can AFFORD that, go for it. IDE RAIDs just make a lot more sense to most people now. A friend of mine is going to solve his problem like this: A small disk for the OS, 2 medium disks in RAID 0 for apps and one large disk for data. You could also choose to put the OS and data on the same disk, but that again poses some risks (as the OS is probably the most disk active "application" in any modern computer). Sure it's not the best solution, but at least he'll get all the space.
G-News
RAID 0: 160GB, fast but twice the chance of things going tits up.
RAID 1:80GB, slow but total data security.
No RAID: 160GB, slow but 50% data security.
I decided to go for:
OS & Apps on a single 80GB 7,200 drive on the UltraATA/100 channel. Data on a 160GB RAID 0 strip set, with backups manually onto DVD-R by simply using the "Date Modified" option in the Finder.
And so with fingers crossed and eyes closed, I run across the road.
Thanks for all your help guys!
<strong>That sounds like a reasonable solution, however, everything that has to be done manually, is bound to be omitted or forgotten, posing yet another risk. As for what the previous post suggests, that would be a RAID 0+1 setup (ie 2 stripes being mirrored to 2 other stripes, for a total of 4 drives). The problem here is that your need for speed (RAID 0) costs you twice as much, because of the "twin" mirror setup (RAID 1). Which is probably why nobody uses that.
PC users (those so called hardcore gamers/computer freaks) unfortunately always trade in security for speed, thus choosing a simple 2 drive RAID 0 option, while professionals would probably go for a RAID 5. Needless to say that serious companies backup their stuff to tapes or optical media too.
As for SCSI RAIDs...hehe if you can AFFORD that, go for it. IDE RAIDs just make a lot more sense to most people now. A friend of mine is going to solve his problem like this: A small disk for the OS, 2 medium disks in RAID 0 for apps and one large disk for data. You could also choose to put the OS and data on the same disk, but that again poses some risks (as the OS is probably the most disk active "application" in any modern computer). Sure it's not the best solution, but at least he'll get all the space.
G-News</strong><hr></blockquote>
You should understand that RAID 0+1 is used where speed is of the essence and coupled to disk capacity and reliability. There are many scientific applications where this makes sense but you need the $$$$ to do it. With today's disks' performances and capacities, I don't think you really need disk striping for the OS and applications. Data storage for bandwidth intensive applications like video editing will definitely benefit from RAID 0. Adding RAID 1 to this would only secure some peace of mind as one would, and should, normally back up their data daily.
Now, does anyone have a solution for hardware RAID 1 for the powermac?
Tnx.
<strong>Now, does anyone have a solution for hardware RAID 1 for the powermac?
Tnx.</strong><hr></blockquote>
- <a href="http://www.arcoide.com/products/macsolutions/pcimac.html" target="_blank">DupliDisk2 IDE RAID Mirroring PCI Card</a>
The latter two seem to be exactly the same though (except for the price). You can use the Acard firmware on the SIIG. Xlr8yourmac has some scary <a href="http://www.xlr8yourmac.com/IDE/acard_ata133_raid/acard_ata133_raid_update.html" target="_blank">stories</a> about the Acard.<a href="http://eshop.macsales.com/Catalog_Item.cfm?ID=4349&Item=SIISCMR4A12" target="_blank">SIIG UltraATA 133/100 RAID</a>
<a href="http://eshop.macsales.com/Catalog_Item.cfm?ID=3855&Item=ACDAEC6880M" target="_blank">ACARD AHArd Ultra ATA/133 PCI</a>
[ 09-16-2002: Message edited by: wfzelle ]</p>
<strong>
- <a href="http://www.arcoide.com/products/macsolutions/pcimac.html" target="_blank">DupliDisk2 IDE RAID Mirroring PCI Card</a>
The latter two seem to be exactly the same though (except for the price). You can use the Acard firmware on the SIIG. Xlr8yourmac has some scary <a href="http://www.xlr8yourmac.com/IDE/acard_ata133_raid/acard_ata133_raid_update.html" target="_blank">stories</a> about the Acard.<a href="http://eshop.macsales.com/Catalog_Item.cfm?ID=4349&Item=SIISCMR4A12" target="_blank">SIIG UltraATA 133/100 RAID</a>
<a href="http://eshop.macsales.com/Catalog_Item.cfm?ID=3855&Item=ACDAEC6880M" target="_blank">ACARD AHArd Ultra ATA/133 PCI</a>
[ 09-16-2002: Message edited by: wfzelle ]</strong><hr></blockquote>
wfzelle,
Thanks for the links.
To anyone, are there any comments from any of the AI posters on any of these products? Tnx.
[ 09-16-2002: Message edited by: DVD_Junkie ]</p>
Originally posted by jxfreak
So did you set up the Raid? How is the speed?
Yes I have set up two RAID stripe sets. The first sits on the UltraATA/100 channel, 2x 80GB 7,200rpm Maxtor drives. The second sits on the UltraATA/66 channel, 2x 80GB 5,400rpm Maxtor drives.
Accessing/launching data and apps is noticable faster, and copying data between RAID has to be seen to be believed - I'm getting about 100MB/s give or take. I'm currently backing up to DVD-R, and I'll buy a dedicated RAID controller for RAID 0+1, once I get around to it.
However, I also installed 2GB of RAM around the same time, so it's hard to figure out if that had any impact.
Messiah AKA Roonster