I'm still not clear... Your Mac crashed when you were stressing it and that's OK? I dunno. Three weeks ago I had a Windows XP machine bluescreen. I still don't trust it even though it hasn't crashed since. About 6 months ago an FC5 machine crashed and I took it offline until I could determine why (hardware issues).
Given that most of us probably read email essentially the same way as elm/pine did for us a decade ago, it sure would be swell to see updates to these metaphors.
Maybe the actual process of reading mail hasn't changed much, but there are lots of differences now. Years ago I used to have an "email station". It would download the mail (via fetchmail/pop) and save it locally. As a consequence, I read mail from that PC. Now, all my mail is accessible from anywhere because it's IMAP and web-enabled. This means that I check my mail more frequently and from just about anywhere (coffeeshops, work, kitchen table).
There are aspects of different clients (Notes, Squirrelmail, Thunderbird, gmail) that I use. The ability to schedule appointments and tasks via invitations is useful to me. It's not standardized though so getting it to work with multiple clients often requires manual entry. Personally I would like to see more PDF based emails. There are multiple downsides to it and it's arguably "evil", but in my case it would be useful. Also, automatic saves of drafts in web-based clients would be useful. Gmail does this, I think, but on most others if you disconnect during the compose then you lose the draft.
It's not a limitation. Hardware virtualization usually means virtualizing hardware in order to run more than one OS on it. OS virtualization is virtualizing the BASE OS to keep apps clearly separate from each other, for whatever reason. They're different. Saying that VMWare is better than Solaris Zones is comparing apples to oranges.
The claim that "OS virtualization is virtualizing the BASE OS to keep apps clearly separate from each other, for whatever reason" is absolutely incorrect with regards to Solaris containers. One of *many* studies:
Specifically, it notes that "Solaris containers do not isolate well-behaved containers from misbehaving containers." The consequence is that a bad zone could take down all zones. Both Xen domU's and VMWare guests provided better isolation than Solaris containers.
And you're also incorrect about hardware virtualization, but you probably already figured that out.
Hence the term 'OS Virtualization' as opposed to hardware.
Which has nothing at all to do with the Solaris limitation. Even commodity virtualization technology such as VMWare Workstation allows you to have different versions of the OS (and mix different OSes) in the same host. The Solaris containers cannot do this. Even the nascent Xen technology has the ability to run different OSes under one host.
Not to mention that the pSeries blades are a nightmare to administer. The SoL (Serial Over Lan) is always SOL.
The pSeries virtualization on the 590s and 570s is pretty amazing. You can dynamically add/remove processors and memory and has (most importantly) some very good monitoring tools. But it's expensive for the power you get.
In smaller shops needing Linux, Xen could be a VMWare killer. I'm impressed with the level of functionality in the current releases. Building out a new machine takes a few minutes. I can run 4 virtual instances (prod file, prod web, test web, etc. ) on an Athlon 2500 with 2G.
I don't know about Solaris virtualization (i.e., containers). A couple Sun reps visited my company and talked about the technology. All partitions use the same OS image. The base OS is a full Solaris installation; if it goes down it takes everything thing down with it (it's not a stripped base OS as in VMWare or your Xen dom0). It's almost like running chroot environments with symlinks to the base software. Even libraries apparently need to be in sync. This seems to prohibit one of the biggest advantages of virtualization: using alternate versions of the OS on the same hardware simultaneously.
Linux and other Unix FSes
on
EXT4 Is Coming
·
· Score: 3, Insightful
I'm as big a Linux fan as anyone, but one glaring thing that it needs is some better filesystem tools. Don't get me wrong -- they've come a long way in the last couple years -- but compared to something like AIX it still has a little ways to go. Here's one feature that causes a challenge: Linux filesystems and the underlying logical volume layer is largely decoupled. You have an immense amount of flexibility but as a consequence, the filesystem and volume layers don't always communicate as well. For example, the AIX JFS2 tools allow you to dynamically grow/shrink filesystems. This functionality exists in Linux for some filesystems (EXT3, ReiserFS) but the procedure varies depending on how the filesystem is constructed. And at this point, I'm not fully convinced of its stability as I've recently (three months ago) lost an entire disk after a dynamic resize on an LVM backed EXT3 partition. I have yet to reproduce the failure but it occurred with a 95% full/home and a kernel compile going full tilt.
But I'm amazed at how quickly these features are being integrated. There's functionality in Linux that allows me to easily create file-backed volumes, remote volumes, SAN LUNs, etc.. The "resize in a single command" is not fully there yet, but within 6 months I'd expect it to be.
The virtualization enhancements to the Intel and AMD processors significantly reduce the overhead of running virtualized environments. Xen, an open source virtualization software, exploits the chip hardware so that typical overhead is under 5%. On a modern processor this may be undetectable.
Yeah thanks.. I live in Broward.. Broward. Known for spammers and tax cheats and now, personal information on public websites. I liked it better when we were known as "the county just north of Miami-Dade County".
Wow.. He took a case fan and powered it from a, uh, power supply. But that's not all that impressive. One time, at band camp, I attached a CD-ROM drive and used power from *ANOTHER* power supply sitting in a *DIFFERENT* machine. And once, at a hacker convention (well, at my friend's house really), we super-hacked a a PS2 mouse to work with a USB interface by using an adapter we rigged (well, it came with the mouse actually).
Tend to agree... though I've dealt with both sides (unions and management) and neither are saints...
IMHO, the best course of action is to vote with your dollars. Don't like BoA's plan? Then pull your money out of their company and put it into another bank. There are millions of IT workers in the US. Their income tends to be higher than average. Imagine how quickly BoA would take notice if billions of dollars suddenly was yanked. This is how capitalism works. It's a very good system, but people are often too lazy to vote with their dollars.
Linux Users to Shun Lenovo, resulting in record losses for Lenovo's bottom line.
Not sure if you meant this sarcastically or not...
I certainly bought my last two Thinkpads because they were well supported under Linux. It's recorded as a Windows laptop, but is a dual-boot now. I like the Thinkpads, but I have absolutely no brand loyalty to them. In fact, just picked up a couple Dells and a Gateway for testing and they work great.
I send back, on average, one drive every few months under warranty. Most times the drives have failed so I can't even low-level format it. I've always wondered what happens to these drives. Are they destroyed? Re-used? As drives get bigger and more and more files are placed on them, it's not surprising that people may *think* the drives are clean when they are not. And I know it's easy to blame the folks for letting the drive out of their possession, but think about it: they were told it was to be destroyed; people put files on their drives (that's what they're for); if the store offered to "dispose" of their old PC (many places do this), there's a reasonable expectation (especially if they're told) that their data would be destroyed, if not the hardware.
the time during hurricane Wilma when I lost power. I was running my email/web server off a 300W inverter powered from my car. Well, the machine wouldn't come up. I tried connecting the monitor to the inverter but it just wasn't powerful enough to run it and the server. The problem was that the filesystem needed to be checked, but I had to monitor to actually see what I was typing. This was exacerbated by the fact that the filesystem was on LVM volumes and didn't have simple names like hda1 or hda2. So I had to blindly type commands to fsck the volume. I ended up grep'ping through/etc/fstab and awk'ing out the relevant fields which I passed to "xargs e2fsck -y". Somehow I was able to do this without a monitor from remembering when I needed to enter the rootpw (and not the root id) to the correct syntax for the awk statement to the flags to e2fsck.
Then there was the time I used a laptop to replace a failed Watchguard... but that was easy because of a firewall CD I carried around. It sure seemed impressive though:D
I've been using ClamWinAV for a couple months now. It seems to do as good a job as the commercial products that shipped with my laptops. And it's free... It does not do live scanning (or, I don't think it does), but works perfectly for scanning the computers at night when it will run unnoticed. It may not be perfect for everyone but is great for me.
Not sure if there's a real difference... But reliable (at least to me) is less about the number of problems, but how reprodicible the system is. I.e., I care less that there's a bug that will crash my entire system and irreversibly corrupt my harddrives and all backups; what I do care about is if the behaviour of the system is consistent and free of surprises. That means that if a bug is triggered by a certain course of actions, it will always trigger when I do those actions (or vice versa). Yes, I've crashed Linux spectacularly, but it was reproducible. On another non-Linux system I am loathe to work on it because, though it doesn't crash often (on the order of less than once a month), when it does it is at the most inopportune times and seemingly random.
True, true... Now that would be different if Thomas Crapper *did* really invent the flush toilet.
This alone is worth it...
on
Vim 7 Released
·
· Score: 4, Funny
Intelligent completion for C, HTML, Ruby, Python, PHP, etc.
Yup, this one alone is worth it. Need to write some code? Forget your IDE and just use the C "autoprogram" feature of the new Vi. This message was composed with :set autorespond .
It's part of their plann.... They realized that they couldn't beat all these programmers working for free on Open Source and Free projects, so they decided to hire them all so they won't contribute to Linux or Apache or Firefox or Samba or....
Slashdot Mirror
I'm still not clear... Your Mac crashed when you were stressing it and that's OK? I dunno. Three weeks ago I had a Windows XP machine bluescreen. I still don't trust it even though it hasn't crashed since. About 6 months ago an FC5 machine crashed and I took it offline until I could determine why (hardware issues).
Given that most of us probably read email essentially the same way as elm/pine did for us a decade ago, it sure would be swell to see updates to these metaphors.
Maybe the actual process of reading mail hasn't changed much, but there are lots of differences now. Years ago I used to have an "email station". It would download the mail (via fetchmail/pop) and save it locally. As a consequence, I read mail from that PC. Now, all my mail is accessible from anywhere because it's IMAP and web-enabled. This means that I check my mail more frequently and from just about anywhere (coffeeshops, work, kitchen table).
There are aspects of different clients (Notes, Squirrelmail, Thunderbird, gmail) that I use. The ability to schedule appointments and tasks via invitations is useful to me. It's not standardized though so getting it to work with multiple clients often requires manual entry. Personally I would like to see more PDF based emails. There are multiple downsides to it and it's arguably "evil", but in my case it would be useful. Also, automatic saves of drafts in web-based clients would be useful. Gmail does this, I think, but on most others if you disconnect during the compose then you lose the draft.
It's not a limitation. Hardware virtualization usually means virtualizing hardware in order to run more than one OS on it. OS virtualization is virtualizing the BASE OS to keep apps clearly separate from each other, for whatever reason. They're different. Saying that VMWare is better than Solaris Zones is comparing apples to oranges.
a tionOfMisbehavingVMs.pdf
The claim that "OS virtualization is virtualizing the BASE OS to keep apps clearly separate from each other, for whatever reason" is absolutely incorrect with regards to Solaris containers. One of *many* studies:
http://people.clarkson.edu/~jnm/publications/isol
Specifically, it notes that "Solaris containers do not isolate well-behaved containers from misbehaving containers." The consequence is that a bad zone could take down all zones. Both Xen domU's and VMWare guests provided better isolation than Solaris containers.
And you're also incorrect about hardware virtualization, but you probably already figured that out.
Hence the term 'OS Virtualization' as opposed to hardware.
Which has nothing at all to do with the Solaris limitation. Even commodity virtualization technology such as VMWare Workstation allows you to have different versions of the OS (and mix different OSes) in the same host. The Solaris containers cannot do this. Even the nascent Xen technology has the ability to run different OSes under one host.
Not to mention that the pSeries blades are a nightmare to administer. The SoL (Serial Over Lan) is always SOL.
The pSeries virtualization on the 590s and 570s is pretty amazing. You can dynamically add/remove processors and memory and has (most importantly) some very good monitoring tools. But it's expensive for the power you get.
In smaller shops needing Linux, Xen could be a VMWare killer. I'm impressed with the level of functionality in the current releases. Building out a new machine takes a few minutes. I can run 4 virtual instances (prod file, prod web, test web, etc. ) on an Athlon 2500 with 2G.
I don't know about Solaris virtualization (i.e., containers). A couple Sun reps visited my company and talked about the technology. All partitions use the same OS image. The base OS is a full Solaris installation; if it goes down it takes everything thing down with it (it's not a stripped base OS as in VMWare or your Xen dom0). It's almost like running chroot environments with symlinks to the base software. Even libraries apparently need to be in sync. This seems to prohibit one of the biggest advantages of virtualization: using alternate versions of the OS on the same hardware simultaneously.
It was intentional.
I'm as big a Linux fan as anyone, but one glaring thing that it needs is some better filesystem tools. Don't get me wrong -- they've come a long way in the last couple years -- but compared to something like AIX it still has a little ways to go. Here's one feature that causes a challenge: Linux filesystems and the underlying logical volume layer is largely decoupled. You have an immense amount of flexibility but as a consequence, the filesystem and volume layers don't always communicate as well. For example, the AIX JFS2 tools allow you to dynamically grow/shrink filesystems. This functionality exists in Linux for some filesystems (EXT3, ReiserFS) but the procedure varies depending on how the filesystem is constructed. And at this point, I'm not fully convinced of its stability as I've recently (three months ago) lost an entire disk after a dynamic resize on an LVM backed EXT3 partition. I have yet to reproduce the failure but it occurred with a 95% full /home and a kernel compile going full tilt.
But I'm amazed at how quickly these features are being integrated. There's functionality in Linux that allows me to easily create file-backed volumes, remote volumes, SAN LUNs, etc.. The "resize in a single command" is not fully there yet, but within 6 months I'd expect it to be.
The virtualization enhancements to the Intel and AMD processors significantly reduce the overhead of running virtualized environments. Xen, an open source virtualization software, exploits the chip hardware so that typical overhead is under 5%. On a modern processor this may be undetectable.
OK, you know you're a nethack addict when & and D scares you.
I've been there.
Yeah thanks.. I live in Broward.. Broward. Known for spammers and tax cheats and now, personal information on public websites. I liked it better when we were known as "the county just north of Miami-Dade County".
Wow.. He took a case fan and powered it from a, uh, power supply. But that's not all that impressive. One time, at band camp, I attached a CD-ROM drive and used power from *ANOTHER* power supply sitting in a *DIFFERENT* machine. And once, at a hacker convention (well, at my friend's house really), we super-hacked a a PS2 mouse to work with a USB interface by using an adapter we rigged (well, it came with the mouse actually).
Tend to agree... though I've dealt with both sides (unions and management) and neither are saints...
IMHO, the best course of action is to vote with your dollars. Don't like BoA's plan? Then pull your money out of their company and put it into another bank. There are millions of IT workers in the US. Their income tends to be higher than average. Imagine how quickly BoA would take notice if billions of dollars suddenly was yanked. This is how capitalism works. It's a very good system, but people are often too lazy to vote with their dollars.
Linux Users to Shun Lenovo, resulting in record losses for Lenovo's bottom line.
Not sure if you meant this sarcastically or not...
I certainly bought my last two Thinkpads because they were well supported under Linux. It's recorded as a Windows laptop, but is a dual-boot now. I like the Thinkpads, but I have absolutely no brand loyalty to them. In fact, just picked up a couple Dells and a Gateway for testing and they work great.
I send back, on average, one drive every few months under warranty. Most times the drives have failed so I can't even low-level format it. I've always wondered what happens to these drives. Are they destroyed? Re-used? As drives get bigger and more and more files are placed on them, it's not surprising that people may *think* the drives are clean when they are not. And I know it's easy to blame the folks for letting the drive out of their possession, but think about it: they were told it was to be destroyed; people put files on their drives (that's what they're for); if the store offered to "dispose" of their old PC (many places do this), there's a reasonable expectation (especially if they're told) that their data would be destroyed, if not the hardware.
the time during hurricane Wilma when I lost power. I was running my email/web server off a 300W inverter powered from my car. Well, the machine wouldn't come up. I tried connecting the monitor to the inverter but it just wasn't powerful enough to run it and the server. The problem was that the filesystem needed to be checked, but I had to monitor to actually see what I was typing. This was exacerbated by the fact that the filesystem was on LVM volumes and didn't have simple names like hda1 or hda2. So I had to blindly type commands to fsck the volume. I ended up grep'ping through /etc/fstab and awk'ing out the relevant fields which I passed to "xargs e2fsck -y". Somehow I was able to do this without a monitor from remembering when I needed to enter the rootpw (and not the root id) to the correct syntax for the awk statement to the flags to e2fsck.
:D
Then there was the time I used a laptop to replace a failed Watchguard... but that was easy because of a firewall CD I carried around. It sure seemed impressive though
I've been using ClamWinAV for a couple months now. It seems to do as good a job as the commercial products that shipped with my laptops. And it's free... It does not do live scanning (or, I don't think it does), but works perfectly for scanning the computers at night when it will run unnoticed. It may not be perfect for everyone but is great for me.
Not sure if there's a real difference... But reliable (at least to me) is less about the number of problems, but how reprodicible the system is. I.e., I care less that there's a bug that will crash my entire system and irreversibly corrupt my harddrives and all backups; what I do care about is if the behaviour of the system is consistent and free of surprises. That means that if a bug is triggered by a certain course of actions, it will always trigger when I do those actions (or vice versa). Yes, I've crashed Linux spectacularly, but it was reproducible. On another non-Linux system I am loathe to work on it because, though it doesn't crash often (on the order of less than once a month), when it does it is at the most inopportune times and seemingly random.
I use many of the Gnome wallpapers on my KDE desktop.
Nahhh, add an AOL CD to every package you send out.
Many businesses probably can't stop using FedEx entirely, but imagine if everyone stuck in a CD or three in every package they had to send :D
True, true... Now that would be different if Thomas Crapper *did* really invent the flush toilet.
Intelligent completion for C, HTML, Ruby, Python, PHP, etc.
:set autorespond .
Yup, this one alone is worth it. Need to write some code? Forget your IDE and just use the C "autoprogram" feature of the new Vi. This message was composed with
"No, Mac OS's security is not merely an illusion;"
Completely agreed. Mac OSX security is not only an illusion, but a dangerous one at that.
Don't mean to be facetious, but the micro-kernel has very little to do with the security of the OS.
It's part of their plann.... They realized that they couldn't beat all these programmers working for free on Open Source and Free projects, so they decided to hire them all so they won't contribute to Linux or Apache or Firefox or Samba or....