RE: "Transparent" IDE RAID controller
SWWWEET. I knew this was in my bookmarks somewhere Check this out; Linux IDE-RAID Notes http://www.research.att.com/~gjm/linux/ide-raid.html # Jesse Molina lanner, Snow # Network Engineer Maximum Charisma Studios Inc. # [EMAIL PROTECTED] 1.303.432.0286 # end of sig > -Original Message- > From: Jason Lim [mailto:[EMAIL PROTECTED] > Sent: Monday, November 05, 2001 4:28 PM > To: Debian-Isp > Subject: "Transparent" IDE RAID controller > > > Actually... come to think of it... I wonder if ANY RAID > controller does > the following... > > - appears to be just ONE hard disk (eg. hda) to the server > - actually has 2 or more hard disks connected to the RAID > controller (but > only shows up as one to the OS) > - if in RAID1 mode (mirroring), if one disk fails, the controller > AUTOMATICALLY uses the remaining hard disk(s), and perhaps a LED could > light up, indicating a problem with a disk. Once a new disk > is connected, > the RAID controller automatically rebuilds > - if in other modes, does 99% of operations by itself with no > intervention > required by the OS (auto rebuilds, etc.) except manual things like > replacing a dead drive > > This would mean the RAID controller is, more or less, OS > independent, and > requires no OS level software to make it run, thus making it a > "transparent" RAID controller. > > I've pondered this for a while, and i'm certainly no hardware > raid expert > but it appears like a workable and doable solution. > > So, for example if i mounted hda, the controller would transparently > activate both the drives (if you are running raid1 with 2 > hds). A cp to > hda would tell the controller to do a normal cp to hda on the > OS level, > but the "transparent" hardware raid controller would know that it is > running in raid1 mode and automatically cp the file(s) to > both hard disks. > After cping the file to both hard disks, it would tell the OS, like a > regular hd controller, that it had finished the operation, > and thus the OS > would not need to know that the file(s) were actually copied to 2 > different hard disks. > > If there is such a solution on the market... I haven't seen it. But > perhaps you could tell me WHY there is no such product when > it seems like > it would solve many problems with software/hardware > incompatibilities, and > would solve many many admin's troubles? > > Failing that... is there ANY product on the market that does plain > hardware level mirroring (for IDE)? What we do now is > (essentially) cp hda > to hdb every 24 hours, so in the case of a major hd failure on hda, we > simply swap hdb over to hda and continue running (but with stuff that > could be up to 24 hours old). What would a solution be to > make it so hdb > is never so out of date with hda, or perhaps even a LIVE copy > (considering > the above proposed transparent hardware raid, and without > causing massive > load during the day)? > > I think this is something many admins have to consider... what is YOUR > solution to this? > > Sincerely, > Jason > > - Original Message - > From: "Jesse Molina" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]>; "Debian-Isp" > Sent: Tuesday, November 06, 2001 9:41 AM > Subject: RE: hardware raid > > > > > > If you are looking for Ultra 160 SCSI, the Mylex AcceleRAID > 170 may be > > something that you want. I recent purchased about 30 of > these cards for > a > > RAID 1 solution for some rack servers. They work pretty > good. RAID0, > > RAID1, Spanning (JBOD), RAID5. You can backup and restore the > controller > > configuration to a floppy disk, the BIOS interface is > fairly nice and > > simple. Rebuilding takes awhile, but no big deal. > > > > They also make an AcceleRAID 170LP, a low-profile PCI card. Pretty > neat. > > > > AMI recently sold all of their RAID card business to LSI Logic, this > making > > getting some of the AMI cards a bit difficult right now. > Otherwise, I > would > > also recommend the AMI Express 500. > > > > If you are looking for IDE, I have no comment there. > > > > > > > > # Jesse Molina lanner, Snow > > # Network Engineer Maximum Charisma Studios Inc. > > # [EMAIL PROTECTED] 1.303.432.0286 > > # end of sig > > > > > > > -Original Message- > > > From: Andrew Kaplan [mailto:[EMAIL PROTECTED] > > > Sent: Monday, November 05, 2001 3:20 PM > > > To: Debian-Isp > > > Subject: hardware raid > > > > > > > > > I'm looking for a good hardware raid 1 (mirroring) solution > > > for Debian. Will > > > the promise cards work with Debian or is there a better > > > solution thanks. > > > > > > Andrew P. Kaplan > > > Network Administrator > > > CyberShore, Inc. > > > http://www.cshore.com > > > > > > "I couldn't give him advice in business and he couldn't give me > > > advice in technology." --Linus Torvalds, about why he wouldn't > > > be interested in meeting Bill Gates. > > > > > > > > > > > > > > > > > > > > > > -Original Message-
RE: "Transparent" IDE RAID controller
These are all very standard features in hardware SCSI RAID controllers that I know of, but my knowledge of IDE RAID controllers is very limited. If all of the RAID controller functions are not transparent to the operating system, it is not a hardware RAID controller as far as I am concerned. If it requires software, then it is a software controller! I am very interested in the subject though, as I am going to need a RAID5 IDE controller in the near future. I was looking at the AMI i4, now the LSI Logic i4, http://www.lsilogic.com/products/storage_standard_prod/raid/ideraid.html. Check out the features on that PDF. It is i960 based. They do not list Debian under OS support -- the bastards ;) , It probably works though. Promise has something called the SuperTrakSX 6000. http://promise.com/Products/Default.htm. This is getting really non-Debian, but I would be very interested in the knowledge of IDE controllers in this area. It is going on a Debian box if that is any consolation. # Jesse Molina lanner, Snow # Network Engineer Maximum Charisma Studios Inc. # [EMAIL PROTECTED] 1.303.432.0286 # end of sig > -Original Message- > From: Jason Lim [mailto:[EMAIL PROTECTED] > Sent: Monday, November 05, 2001 4:28 PM > To: Debian-Isp > Subject: "Transparent" IDE RAID controller > > > Actually... come to think of it... I wonder if ANY RAID > controller does > the following... > > - appears to be just ONE hard disk (eg. hda) to the server > - actually has 2 or more hard disks connected to the RAID > controller (but > only shows up as one to the OS) > - if in RAID1 mode (mirroring), if one disk fails, the controller > AUTOMATICALLY uses the remaining hard disk(s), and perhaps a LED could > light up, indicating a problem with a disk. Once a new disk > is connected, > the RAID controller automatically rebuilds > - if in other modes, does 99% of operations by itself with no > intervention > required by the OS (auto rebuilds, etc.) except manual things like > replacing a dead drive > > This would mean the RAID controller is, more or less, OS > independent, and > requires no OS level software to make it run, thus making it a > "transparent" RAID controller. > > I've pondered this for a while, and i'm certainly no hardware > raid expert > but it appears like a workable and doable solution. > > So, for example if i mounted hda, the controller would transparently > activate both the drives (if you are running raid1 with 2 > hds). A cp to > hda would tell the controller to do a normal cp to hda on the > OS level, > but the "transparent" hardware raid controller would know that it is > running in raid1 mode and automatically cp the file(s) to > both hard disks. > After cping the file to both hard disks, it would tell the OS, like a > regular hd controller, that it had finished the operation, > and thus the OS > would not need to know that the file(s) were actually copied to 2 > different hard disks. > > If there is such a solution on the market... I haven't seen it. But > perhaps you could tell me WHY there is no such product when > it seems like > it would solve many problems with software/hardware > incompatibilities, and > would solve many many admin's troubles? > > Failing that... is there ANY product on the market that does plain > hardware level mirroring (for IDE)? What we do now is > (essentially) cp hda > to hdb every 24 hours, so in the case of a major hd failure on hda, we > simply swap hdb over to hda and continue running (but with stuff that > could be up to 24 hours old). What would a solution be to > make it so hdb > is never so out of date with hda, or perhaps even a LIVE copy > (considering > the above proposed transparent hardware raid, and without > causing massive > load during the day)? > > I think this is something many admins have to consider... what is YOUR > solution to this? > > Sincerely, > Jason > > - Original Message - > From: "Jesse Molina" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]>; "Debian-Isp" > Sent: Tuesday, November 06, 2001 9:41 AM > Subject: RE: hardware raid > > > > > > If you are looking for Ultra 160 SCSI, the Mylex AcceleRAID > 170 may be > > something that you want. I recent purchased about 30 of > these cards for > a > > RAID 1 solution for some rack servers. They work pretty > good. RAID0, > > RAID1, Spanning (JBOD), RAID5. You can backup and restore the > controller > > configuration to a floppy disk, the BIOS interface is > fairly nice and > > simple. Rebuilding takes awhile, but no big deal. > > > > They also make an AcceleRAID 170LP, a low-profile PCI card. Pretty > neat. > > > > AMI recently sold all of their RAID card business to LSI Logic, this > making > > getting some of the AMI cards a bit difficult right now. > Otherwise, I > would > > also recommend the AMI Express 500. > > > > If you are looking for IDE, I have no comment there. > > > > > > > > # Jesse Molina lanner,
RE: "Transparent" IDE RAID controller
Yes, please visit 3ware's web site. Their Escalade controller takes ATA/66 and ATA/100 disks, and provides a SCSI interface to the OS. Drivers for linux and various Windows platforms are available. I've had good experiences with their controllers and use them in production. - jsw -Original Message- From: Jason Lim [mailto:[EMAIL PROTECTED] Sent: Monday, November 05, 2001 6:28 PM To: Debian-Isp Subject: "Transparent" IDE RAID controller Actually... come to think of it... I wonder if ANY RAID controller does the following... - appears to be just ONE hard disk (eg. hda) to the server - actually has 2 or more hard disks connected to the RAID controller (but only shows up as one to the OS) - if in RAID1 mode (mirroring), if one disk fails, the controller AUTOMATICALLY uses the remaining hard disk(s), and perhaps a LED could light up, indicating a problem with a disk. Once a new disk is connected, the RAID controller automatically rebuilds - if in other modes, does 99% of operations by itself with no intervention required by the OS (auto rebuilds, etc.) except manual things like replacing a dead drive This would mean the RAID controller is, more or less, OS independent, and requires no OS level software to make it run, thus making it a "transparent" RAID controller. I've pondered this for a while, and i'm certainly no hardware raid expert but it appears like a workable and doable solution. So, for example if i mounted hda, the controller would transparently activate both the drives (if you are running raid1 with 2 hds). A cp to hda would tell the controller to do a normal cp to hda on the OS level, but the "transparent" hardware raid controller would know that it is running in raid1 mode and automatically cp the file(s) to both hard disks. After cping the file to both hard disks, it would tell the OS, like a regular hd controller, that it had finished the operation, and thus the OS would not need to know that the file(s) were actually copied to 2 different hard disks. If there is such a solution on the market... I haven't seen it. But perhaps you could tell me WHY there is no such product when it seems like it would solve many problems with software/hardware incompatibilities, and would solve many many admin's troubles? Failing that... is there ANY product on the market that does plain hardware level mirroring (for IDE)? What we do now is (essentially) cp hda to hdb every 24 hours, so in the case of a major hd failure on hda, we simply swap hdb over to hda and continue running (but with stuff that could be up to 24 hours old). What would a solution be to make it so hdb is never so out of date with hda, or perhaps even a LIVE copy (considering the above proposed transparent hardware raid, and without causing massive load during the day)? I think this is something many admins have to consider... what is YOUR solution to this? Sincerely, Jason - Original Message - From: "Jesse Molina" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Debian-Isp" Sent: Tuesday, November 06, 2001 9:41 AM Subject: RE: hardware raid > > If you are looking for Ultra 160 SCSI, the Mylex AcceleRAID 170 may be > something that you want. I recent purchased about 30 of these cards for a > RAID 1 solution for some rack servers. They work pretty good. RAID0, > RAID1, Spanning (JBOD), RAID5. You can backup and restore the controller > configuration to a floppy disk, the BIOS interface is fairly nice and > simple. Rebuilding takes awhile, but no big deal. > > They also make an AcceleRAID 170LP, a low-profile PCI card. Pretty neat. > > AMI recently sold all of their RAID card business to LSI Logic, this making > getting some of the AMI cards a bit difficult right now. Otherwise, I would > also recommend the AMI Express 500. > > If you are looking for IDE, I have no comment there. > > > > # Jesse Molina lanner, Snow > # Network Engineer Maximum Charisma Studios Inc. > # [EMAIL PROTECTED] 1.303.432.0286 > # end of sig > > > > -Original Message- > > From: Andrew Kaplan [mailto:[EMAIL PROTECTED] > > Sent: Monday, November 05, 2001 3:20 PM > > To: Debian-Isp > > Subject: hardware raid > > > > > > I'm looking for a good hardware raid 1 (mirroring) solution > > for Debian. Will > > the promise cards work with Debian or is there a better > > solution thanks. > > > > Andrew P. Kaplan > > Network Administrator > > CyberShore, Inc. > > http://www.cshore.com > > > > "I couldn't give him advice in business and he couldn't give me > > advice in technology." --Linus Torvalds, about why he wouldn't > > be interested in meeting Bill Gates. > > > > > > > > > > > > > > > -Original Message- > > > From: Craigsc [mailto:[EMAIL PROTECTED] > > > Sent: Monday, November 05, 2001 4:17 AM > > > To: Debian-Isp > > > Subject: VIM > > > > > > > > > H > > > > > > > > > -- > > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > > with a subject of "unsubscribe". Trouble? Contact > > > [EMAIL PROTECTED] > > > > > > > > > --- > >
"Transparent" IDE RAID controller
Actually... come to think of it... I wonder if ANY RAID controller does the following... - appears to be just ONE hard disk (eg. hda) to the server - actually has 2 or more hard disks connected to the RAID controller (but only shows up as one to the OS) - if in RAID1 mode (mirroring), if one disk fails, the controller AUTOMATICALLY uses the remaining hard disk(s), and perhaps a LED could light up, indicating a problem with a disk. Once a new disk is connected, the RAID controller automatically rebuilds - if in other modes, does 99% of operations by itself with no intervention required by the OS (auto rebuilds, etc.) except manual things like replacing a dead drive This would mean the RAID controller is, more or less, OS independent, and requires no OS level software to make it run, thus making it a "transparent" RAID controller. I've pondered this for a while, and i'm certainly no hardware raid expert but it appears like a workable and doable solution. So, for example if i mounted hda, the controller would transparently activate both the drives (if you are running raid1 with 2 hds). A cp to hda would tell the controller to do a normal cp to hda on the OS level, but the "transparent" hardware raid controller would know that it is running in raid1 mode and automatically cp the file(s) to both hard disks. After cping the file to both hard disks, it would tell the OS, like a regular hd controller, that it had finished the operation, and thus the OS would not need to know that the file(s) were actually copied to 2 different hard disks. If there is such a solution on the market... I haven't seen it. But perhaps you could tell me WHY there is no such product when it seems like it would solve many problems with software/hardware incompatibilities, and would solve many many admin's troubles? Failing that... is there ANY product on the market that does plain hardware level mirroring (for IDE)? What we do now is (essentially) cp hda to hdb every 24 hours, so in the case of a major hd failure on hda, we simply swap hdb over to hda and continue running (but with stuff that could be up to 24 hours old). What would a solution be to make it so hdb is never so out of date with hda, or perhaps even a LIVE copy (considering the above proposed transparent hardware raid, and without causing massive load during the day)? I think this is something many admins have to consider... what is YOUR solution to this? Sincerely, Jason - Original Message - From: "Jesse Molina" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Debian-Isp" Sent: Tuesday, November 06, 2001 9:41 AM Subject: RE: hardware raid > > If you are looking for Ultra 160 SCSI, the Mylex AcceleRAID 170 may be > something that you want. I recent purchased about 30 of these cards for a > RAID 1 solution for some rack servers. They work pretty good. RAID0, > RAID1, Spanning (JBOD), RAID5. You can backup and restore the controller > configuration to a floppy disk, the BIOS interface is fairly nice and > simple. Rebuilding takes awhile, but no big deal. > > They also make an AcceleRAID 170LP, a low-profile PCI card. Pretty neat. > > AMI recently sold all of their RAID card business to LSI Logic, this making > getting some of the AMI cards a bit difficult right now. Otherwise, I would > also recommend the AMI Express 500. > > If you are looking for IDE, I have no comment there. > > > > # Jesse Molina lanner, Snow > # Network Engineer Maximum Charisma Studios Inc. > # [EMAIL PROTECTED] 1.303.432.0286 > # end of sig > > > > -Original Message- > > From: Andrew Kaplan [mailto:[EMAIL PROTECTED] > > Sent: Monday, November 05, 2001 3:20 PM > > To: Debian-Isp > > Subject: hardware raid > > > > > > I'm looking for a good hardware raid 1 (mirroring) solution > > for Debian. Will > > the promise cards work with Debian or is there a better > > solution thanks. > > > > Andrew P. Kaplan > > Network Administrator > > CyberShore, Inc. > > http://www.cshore.com > > > > "I couldn't give him advice in business and he couldn't give me > > advice in technology." --Linus Torvalds, about why he wouldn't > > be interested in meeting Bill Gates. > > > > > > > > > > > > > > > -Original Message- > > > From: Craigsc [mailto:[EMAIL PROTECTED] > > > Sent: Monday, November 05, 2001 4:17 AM > > > To: Debian-Isp > > > Subject: VIM > > > > > > > > > H > > > > > > > > > -- > > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > > with a subject of "unsubscribe". Trouble? Contact > > > [EMAIL PROTECTED] > > > > > > > > > --- > > > Incoming mail is certified Virus Free. > > > Checked by AVG anti-virus system (http://www.grisoft.com). > > > Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 > > > > > --- > > Outgoing mail is certified Virus Free. > > Checked by AVG anti-virus system (http://www.grisoft.com). > > Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 > > > > > > -- > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > with a subject of "unsubscr
RE: hardware raid
If you are looking for Ultra 160 SCSI, the Mylex AcceleRAID 170 may be something that you want. I recent purchased about 30 of these cards for a RAID 1 solution for some rack servers. They work pretty good. RAID0, RAID1, Spanning (JBOD), RAID5. You can backup and restore the controller configuration to a floppy disk, the BIOS interface is fairly nice and simple. Rebuilding takes awhile, but no big deal. They also make an AcceleRAID 170LP, a low-profile PCI card. Pretty neat. AMI recently sold all of their RAID card business to LSI Logic, this making getting some of the AMI cards a bit difficult right now. Otherwise, I would also recommend the AMI Express 500. If you are looking for IDE, I have no comment there. # Jesse Molina lanner, Snow # Network Engineer Maximum Charisma Studios Inc. # [EMAIL PROTECTED] 1.303.432.0286 # end of sig > -Original Message- > From: Andrew Kaplan [mailto:[EMAIL PROTECTED] > Sent: Monday, November 05, 2001 3:20 PM > To: Debian-Isp > Subject: hardware raid > > > I'm looking for a good hardware raid 1 (mirroring) solution > for Debian. Will > the promise cards work with Debian or is there a better > solution thanks. > > Andrew P. Kaplan > Network Administrator > CyberShore, Inc. > http://www.cshore.com > > "I couldn't give him advice in business and he couldn't give me > advice in technology." --Linus Torvalds, about why he wouldn't > be interested in meeting Bill Gates. > > > > > > > > -Original Message- > > From: Craigsc [mailto:[EMAIL PROTECTED] > > Sent: Monday, November 05, 2001 4:17 AM > > To: Debian-Isp > > Subject: VIM > > > > > > H > > > > > > -- > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > with a subject of "unsubscribe". Trouble? Contact > > [EMAIL PROTECTED] > > > > > > --- > > Incoming mail is certified Virus Free. > > Checked by AVG anti-virus system (http://www.grisoft.com). > > Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact > [EMAIL PROTECTED] >
RE: hardware raid
The 3ware cards work really well. www.3ware.com and check out the Escalade 6200/6400? or 7xxx series if you have 64-bit PCI slots. - jsw -Original Message- From: Andrew Kaplan [mailto:[EMAIL PROTECTED] Sent: Monday, November 05, 2001 5:20 PM To: Debian-Isp Subject: hardware raid I'm looking for a good hardware raid 1 (mirroring) solution for Debian. Will the promise cards work with Debian or is there a better solution thanks. Andrew P. Kaplan Network Administrator CyberShore, Inc. http://www.cshore.com "I couldn't give him advice in business and he couldn't give me advice in technology." --Linus Torvalds, about why he wouldn't be interested in meeting Bill Gates. > -Original Message- > From: Craigsc [mailto:[EMAIL PROTECTED] > Sent: Monday, November 05, 2001 4:17 AM > To: Debian-Isp > Subject: VIM > > > H > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact > [EMAIL PROTECTED] > > > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
hardware raid
I'm looking for a good hardware raid 1 (mirroring) solution for Debian. Will the promise cards work with Debian or is there a better solution thanks. Andrew P. Kaplan Network Administrator CyberShore, Inc. http://www.cshore.com "I couldn't give him advice in business and he couldn't give me advice in technology." --Linus Torvalds, about why he wouldn't be interested in meeting Bill Gates. > -Original Message- > From: Craigsc [mailto:[EMAIL PROTECTED] > Sent: Monday, November 05, 2001 4:17 AM > To: Debian-Isp > Subject: VIM > > > H > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact > [EMAIL PROTECTED] > > > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01 > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.286 / Virus Database: 152 - Release Date: 10/9/01
tunnels
Hello! a bit offtopic, but: *My home machine is connectod to the internet with a dsl modem and pppoe *my isp has configured the stuff so that from the internet only connections to the port 113/tcp are allowed(I'm running ssh on that port at the moment) *I have another machine on the net, with two assigned ip-s 1.2.3.4 and 1.2.3.9 *since only one is in use, I'd like to make my home machine visible to the internet as ip 1.2.3.9, using some secure method My question is how to do it ? Martin
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Unstable XFree4 config scripts
Hello Does anybody know how to restart the scripts which configure XFree4 in unstable so nicely? Thanks James
