Ok here is the low down:
Machine 1: PII 450 Compaq, with an Intel USB controller, this is the same dog machine I just replaced in the previous thread Kernel: 2.6.9-22.0.1.EL 512 Megs RAM Don't know what the usb controller was but its Intel, and its USB 1 Speed: 1000K/sec consistent
Machine 2: Intel 440GX+ in an SC5000 chassis 2 x PIII 1GHz CPU 00:12.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01) 1024 Megs RAM Kernel: 2.6.9-22.0.1.ELsmp Speed: 1000K/sec consistent
Machine 3: VIA C3 600MHz EPIA Kernel : 2.6.9-22.0.1.EL 00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 512Megs RAM Speed: 4.95M/sec consistent from a remote putty shell (via SSH) Erratic when hdparm run from the text console....
I know these machines aren't bleeding edge but the VIA C3 box is the intended target, its silent and fanless and smaller than the yellow pages book by a fair margin. It also has two nics onboard making it ideal for a home firewall (its current use).
USB ports are arranged in two pairs, and I tried one socket in each, from the LSPCI looks like only one of these is USB2 - cooments invited
/proc/CPUinfo shows the cpu at 400MHz not sure if this is accurate I will check the BIOS as its supposed to be 600MHz.
If you're telling me 4.95Megs/sec is about tops then I might be able to by that...
Ideas welcome....
Pete
If you reckon
Bryan J. Smith wrote:
Les Mikesell lesmikesell@gmail.com wrote:
What Linux kernel versions have you used with firewire?
Late 2.4.2x, as well as 2.6.x -- basically RHL9/FC1/RHEL3 and FC3/RHEL4. I do have to rebuild for FireWire support in RHEL4, yes.
The last 2 fedora FC4 updates broke disk access completely.
I ain't touching FC4. ;->
FC3 sort-of works, but when I leave a RAID1 mirror running with an IDE partition and a firewire partition mirrored, within a few hours of activity either the machine will
crash
or the firewire partition will be kicked out of the RAID.
Repeat after me ... ;-> "USB and FireWire should _not_ be used as 24x7 on-line storage"
Despite Apple's prior claims, it has become more apparent than ever that FireWire is _not_ a 24x7 on-line storage solution. Do not use it as such, use it as a temporary, near-line storage solution that you plug-in and use just when you need it. I've learned that hard lesson even on Apple's own XServe platforms.
I haven't tried Centos because you need the unsupported kernel and I didn't have much hope for that being better than any of the fedoras.
I've had no problem with my disks, Digital8 and DV cams, etc... They all work great! But I don't leave the disks or camera connected for a day at a time, I plug-in, use and then I unplug when finished.
Regardless of OS -- Linux, MacOS X or Windows -- FireWire and USB are nothing but trouble when it comes to leaving them connected. They are a "temporary plug and unplug" solution AFAIAC.
If you want reliable, external storage, consider SCSI or ... better yet ... Serial Attached SCSI (SAS).