Re:FireWire Powered drives cost more, not less
on
Firewire and Linux?
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· Score: 1
This actually sounds unlikley. The plugpacks are likely to cost more.
Are you sure you are comparing similar drives? Most bus-powered drives are 2.5" notebook drives, while those that are external powered are 3.5" which have higher power requirements. Obviously, the 2.5" drive costs a little more. (and is slower also, but this might be an ok trase-off for the portability.
To say W2K rarely crashes must be wishful thinking. I picked up my new Dell latitude laptop just 3 weeks ago, and have experienced around 7 BSOD's, and two lockups requiring the power be pulled and the battery removed to reset the damn thing.
It only has Win2k (plus service pack) and office 2000, with very little other 3rd party software. I can't wait to get my partition magic cd out and clear some space for linux.
I've also got to get the thing working with my samba server (which runs on solaris 8 on an ultra 1) which is currently setup for roaming profiles for my win 98 desktop and laptop (both dual boot SuSE)....I've heard this could also be fun....
I admit W2k does look good (nice cd player) but there is still work to be done.
BTW , whats with 'built on NT technology'? Didn't NT stand for New Technology, (even if a lot was recycled from OS/2). Did microsoft forget this, or is it just an example of how marketeers now run the company?
First, do you want hardware raided storage, or just some JBOD's (Just a Bunch of Disks). With this second option you can software RAID at the expense of some CPU overhead.
Cost and uptime will factor into the choices available to you.
How many machines do you want to connect to the storage? A fiber Channel Arbitrated Loop supports over 100 devices, but 80 may be a better limit. You can start with say, 10 servers, a SAN storage unit, a FCAL HUB (such as made by (Gadzoox).
If you want more, you're looking at a Fabric switch such as a Brocade which can get expensive quickly.
Talking to the SAN should not be a problem as far as the storage device is concerned - its the drivers for your fiber channel card that need to support linux. You can look at JNI, Emulex or Qlogic - some of these will have linux support.
To save cost, you can have a SAN raid that has disks attatched to the raid controller via LVD, with only the link between the HBA and controller being FC. Alternatively, you can get a 'full fiber' system. One sold by Dothill http://www.dothill.com can accomodate up to 80 or 160 73G drives depending on configuration, but for what you are taling about, they have a system called the 7120 that packs up to 10 73G drives, dual RAID controllers, N+1 fans and power supplies all into 4RU. And everything is hot swappable.
Check the vendors software for Linux support. Software may be for configuration, dual pathing etc. Some people make Java software, but I have seen problems with some of these under linux.
For a great SAN tutorial, have a look at http://www.dothill.com/tutorial/index.htm it explains all the terms and everything you need to het started.
I have had a dc290 for around 6 months now and have largely been disapointed with it. It is a large and heavy camera, and the batteries last approximately no time at all.
Not all countries get the accessories you get in the US. A DC290 purchased in Hong Kong does not have charger, rechargeable batteries, pcmcia reader or power adapter. It did have a serial cable which was unusable for 5 months as the release date for the software that supported it got pushed back with no explanantion on the website. A request to the kodak's email elicited no response at all for two months, then a reply came when the software was released.
Now I am using windows 2000 and linux, since NT4 decided to stop functioning ion this laptop, and I needed to buy a pcmcia adapter to get pictures down, as the slow serial connection no longer works.
I have also suffered two corrupt flash cards, meaning may pictures have been lost, and since the last firmware upgrade, I seem to have to wait much longer between taking pictues.
On the last point point, while sad it is sometimes true. I work in the internet field, and this laptop is away with me while I am at holidays at the moment. One of the main reasons is so that I can upload pictures to it, as well as to play CD's and DVD's.
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This actually sounds unlikley. The plugpacks are likely to cost more.
Are you sure you are comparing similar drives? Most bus-powered drives are 2.5" notebook drives, while those that are external powered are 3.5" which have higher power requirements. Obviously, the 2.5" drive costs a little more. (and is slower also, but this might be an ok trase-off for the portability.
The features state that it is firmware upgradeable to support new standards.
So, I guess if the demand is there...
To say W2K rarely crashes must be wishful thinking. I picked up my new Dell latitude laptop just 3 weeks ago, and have experienced around 7 BSOD's, and two lockups requiring the power be pulled and the battery removed to reset the damn thing.
It only has Win2k (plus service pack) and office 2000, with very little other 3rd party software. I can't wait to get my partition magic cd out and clear some space for linux.
I've also got to get the thing working with my samba server (which runs on solaris 8 on an ultra 1) which is currently setup for roaming profiles for my win 98 desktop and laptop (both dual boot SuSE)....I've heard this could also be fun....
I admit W2k does look good (nice cd player) but there is still work to be done.
BTW , whats with 'built on NT technology'? Didn't NT stand for New Technology, (even if a lot was recycled from OS/2). Did microsoft forget this, or is it just an example of how marketeers now run the company?
-David
First, do you want hardware raided storage, or just some JBOD's (Just a Bunch of Disks). With this second option you can software RAID at the expense of some CPU overhead.
Cost and uptime will factor into the choices available to you.
How many machines do you want to connect to the storage? A fiber Channel Arbitrated Loop supports over 100 devices, but 80 may be a better limit. You can start with say, 10 servers, a SAN storage unit, a FCAL HUB (such as made by (Gadzoox).
If you want more, you're looking at a Fabric switch such as a Brocade which can get expensive quickly.
Talking to the SAN should not be a problem as far as the storage device is concerned - its the drivers for your fiber channel card that need to support linux. You can look at JNI, Emulex or Qlogic - some of these will have linux support.
To save cost, you can have a SAN raid that has disks attatched to the raid controller via LVD, with only the link between the HBA and controller being FC. Alternatively, you can get a 'full fiber' system. One sold by Dothill http://www.dothill.com can accomodate up to 80 or 160 73G drives depending on configuration, but for what you are taling about, they have a system called the 7120 that packs up to 10 73G drives, dual RAID controllers, N+1 fans and power supplies all into 4RU. And everything is hot swappable.
Check the vendors software for Linux support. Software may be for configuration, dual pathing etc. Some people make Java software, but I have seen problems with some of these under linux.
For a great SAN tutorial, have a look at http://www.dothill.com/tutorial/index.htm it explains all the terms and everything you need to het started.
Not all countries get the accessories you get in the US. A DC290 purchased in Hong Kong does not have charger, rechargeable batteries, pcmcia reader or power adapter. It did have a serial cable which was unusable for 5 months as the release date for the software that supported it got pushed back with no explanantion on the website. A request to the kodak's email elicited no response at all for two months, then a reply came when the software was released.
Now I am using windows 2000 and linux, since NT4 decided to stop functioning ion this laptop, and I needed to buy a pcmcia adapter to get pictures down, as the slow serial connection no longer works.
I have also suffered two corrupt flash cards, meaning may pictures have been lost, and since the last firmware upgrade, I seem to have to wait much longer between taking pictues.
On the last point point, while sad it is sometimes true. I work in the internet field, and this laptop is away with me while I am at holidays at the moment. One of the main reasons is so that I can upload pictures to it, as well as to play CD's and DVD's.