similar to: Re: Is there still no easier way to shrink a VM image?

I have numerous qcow2 images which need to be reduced in size and have their maximum size (virtual size) reduced. Physical disk space became so low that VMs "auto-paused" themselves, I moved enough images to solve the immediate problem but need to rectify the underlying issue. It seems that qcow[2] files are grown in size such that the data inside of them takes about 50-60% of the

If you are using XFS - there is mount option "discard|nodiscard" From XFS man page: discard|nodiscard Enable/disable the issuing of commands to let the block device reclaim space freed by the filesystem. This is useful for SSD devices, thinly provisioned LUNs and virtual machine images, but may have a performance impact. Note: It is currently

On Mon, Jul 31, 2017 at 08:28:49AM -0500, Leroy Tennison wrote: > I realize this is wandering off-topic but, if you have found Debian commands, you're doing better than me. What are they? Also, are you allowing dd to totally fill the partition (what I have found on the web as a recommendation)? If so, is the OS surviving acceptably? > > ----- Original Message ----- > From:

Il 01/07/20 17:13, Leroy Tennison ha scritto: > I realize this shouldn't happen, the file is a tgz and isn't being modified while being transmitted. This has happened maybe three times this year and unfortunately I've just had to deal with it rather than invest the time to do the research. > > > Harriscomputer > > Leroy Tennison > Network Information/Cyber

Hi Leroy, How I can confirm that during rsync transfer corruption are not encountered? Thank you in advance. Il 01/07/20 16:04, Leroy Tennison ha scritto: > I've used rsync (but probably not for the size you're referring to), it works and has enough features to meet most needs. I have had a single situation where corruption occurred during transfer (a few times, have no idea why),

Once upon a time, Leroy Tennison <leroy at datavoiceint.com> said: > The executable could be placed on mounted read-only media That's not as secure as you think. Linux bind mounts can mount a file over another file (plus there's overlay filesystems), so it's possible to replace a binary even on a read-only device. -- Chris Adams <linux at cmadams.net>

Il 02/07/20 15:02, Valeri Galtsev ha scritto: > > > On 7/2/20 3:22 AM, Alessandro Baggi wrote: >> Il 01/07/20 17:13, Leroy Tennison ha scritto: >>> I realize this shouldn't happen, the file is a tgz and isn't being >>> modified while being transmitted.? This has happened maybe three >>> times this year and unfortunately I've just had to deal

Leroy Tennison wrote: > No kidding, but in that "other OS" the answer to the question "how can I > create that report" is usually "You can't unless you spend money for a > third-party application". > "Other", singluar? Did you mean WinDoze, or on an IBM mainframe, or...? mark "been around the block" > ----- Original

Warren Young wrote: > On Oct 25, 2017, at 11:00 AM, Leroy Tennison <leroy at datavoiceint.com> > wrote: >> >> Although "not my question", thanks, I learned a lot about array >> processing from your example. > > Yeah, it?s amazing how many obscure corners of the Bash language must be > tapped to solve such a simple problem. I count 7 features in

You're right, there's a procedure following it, once the space is zeroed qemu-img will recognize it as such and will eliminate it when 'convert' is used. Apparently Fedora qemu has some better capabilities to shrink partitions but they haven't made it to "long term support" distributions yet. For now, what has to be done to shrink qcow[2] partitions (raw works) is

On 12/12/18 7:11 PM, Leroy Tennison wrote: > Does your version of CentOS have the @reboot crontab option? If it does this is probably easier unless you want to learn how to write systemd files. CentOS 7.6.? I will have to google @reboot... > > > Leroy Tennison > Network Information/Cyber Security Specialist > E: leroy at datavoiceint.com > 2220 Bush Dr > McKinney, Texas

Since you state that using -z is almost always a bad idea, could you provide the rationale for that? I must be missing something. ________________________________ From: CentOS <centos-bounces at centos.org> on behalf of Peter Kjellstr?m <cap at nsc.liu.se> Sent: Wednesday, March 25, 2020 9:34 AM To: Simon Matter <simon.matter at invoca.ch> Cc: centos at centos.org <centos at

On 2020-07-08 10:23, Leroy Tennison wrote: > I've used one on a Linux laptop, it "just worked" but the OS wasn't CentOS 7. > It is not clear if you used USB from APC UPS to USB port on the machine side or USB - to - "serial". USB to USB with standard USB cable will work. If one uses serial to USB adapter on the machine side (to create serial port through USB

On 7/25/19 3:28 PM, Leroy Tennison wrote: > If you don't want multiple DNS server entries on the client I'm ok with them, only the problem is that the clients take their timeouts when a server is unreachable, and users panic. > then a master and (possibly multiple) slave server configuration can be set up (I'm assuming ISC DNS - their solution to redundancy/failover is master

> On Wed, 2020-03-25 at 14:39 +0000, Leroy Tennison wrote: >> Since you state that using -z is almost always a bad idea, could you >> provide the rationale for that? I must be missing something. >> > I think the "rationale" is that at some point the > compression/decompression takes longer than the time reduction from > sending a compressed file. It

There may be ways to force NIC naming, I've done so but only on Ubuntu so you'll need to do the research if it's important to you. Things to look for based on my experience: 70-persistent-net.rules, net.ifnames=0, biosdevname=0. ________________________________ From: CentOS <centos-bounces at centos.org> on behalf of Nicolas Kovacs <info at microlinux.fr> Sent: Sunday,

Am 07.02.20 um 17:43 schrieb Leroy Tennison: > Yes, have done it a few times. If you need it to have a different IP address/name/license then bring up a new definition without a NIC, login via virt-manager. For the IP address, search the registry for the current IP address and change the appropriate entries. Use standard Windows utilities to change the description/name. For the license,

On 10/12/18 8:40 AM, Leroy Tennison wrote: > And I thought it was a Kubuntu (Ubuntu with KDE desktop for those who aren't familiar) thing! Apparently it's a KDE thing. I haven't experienced the scrollbar aspect (or maybe I just haven't done what you do) but my arrows are missing too. I'm thinking this is a KDE Blasted Ugly Gotcha (BUG). BTW, if you haven't already

Leroy Tennison wrote: > And I thought it was a Kubuntu (Ubuntu with KDE desktop for those who > aren't familiar) thing! Apparently it's a KDE thing. I haven't > experienced the scrollbar aspect (or maybe I just haven't done what you > do) but my arrows are missing too. I'm thinking this is a KDE Blasted > Ugly Gotcha (BUG). BTW, if you haven't already

Without context it's impossible to make firm statements but, having gone through this a while back (and discovering that less than 1 percent of an examined list of connections couldn't support current ssl - mainly Apple hardware), who do you want to protect? Is it the minority who won't/can't upgrade or the majority who have? And, do you have to protect yourself from liability