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location Netherlands
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visits member for 3 years, 1 month
seen Oct 16 at 15:55

Sep
24
comment Why should iscsi traffic be isolated?
That's by design - QoS lets non-timesensitive data wait for more urgent data such as iSCSI traffic.
Sep
24
comment Why should iscsi traffic be isolated?
That's an argument for QoS. Would you also argue in favor of isolating VoIP traffic?
Jul
23
comment del *.txt removes also file.txt_backup
Ow, turns out the MSDN doc is incorrect when it states that ? matches a single character. It also matches zero characters.
Jul
23
comment RAID-5: Two disks failed simultaneously?
Then again, when power supplies fail spectacularly (e.g. 12V on 5V rail) it doesn't matter whether you have N+1 or N+2 redundancy. Same applies to fire and other big accidents. Offsite backups are essential, and in combination with N+1 redundancy that may be sufficient.
Jul
21
comment Why are only 16 GB of memory usable on our server?
The board is a single-socket. Besides, if it was installed on the wrong side of a dual-socket board, the OS wouldn't even see it.
Jul
18
comment del *.txt removes also file.txt_backup
@Gx1sptDTDa: You can turn it off system-wide, but it is still the default.
Jul
18
answered del *.txt removes also file.txt_backup
Jul
18
comment del *.txt removes also file.txt_backup
@Gx1sptDTDa: That's not the problem, the 4th file is also named fourth.txt under 8.3 naming. And that absolutely matches *.txt.
Jun
30
answered Expire Files In A Folder: Delete Files After x Days
May
5
comment Why do we still use power supplies on datacenter servers?
As an engineer, the main question is why people run their AC at 50 Hz or 60 Hz. PSU's are so big because the frequency is so low. But in a DC environment behind UPS'es, you could pick any frequency. At 500 Hz, the PSU's would be smaller and more efficient. (Basically, your caps can be 10x smaller because each period now lasts 2 ms instead of 20 ms)
Apr
18
comment Bash: mv directory one at a time
Not if you do it across a network connection. Then all files are downloaded and uploaded again.
Mar
24
comment How does Windows handle program dependencies?
@FilipeYaBaPolido: Your hate is particularly misplaced since the VC++2008 runtime is for C++ applications, not .Net applications. Obviously .Net applications need the .Net framework and C++ applications need the C++ framework(runtime), quite simple really. Now a particular software package may contain both C++ and .Net parts so the two are not exclusive.
Mar
10
comment alternative directory for files if not exists
@JennyD: That's a valid answer, not a reason to close as duplicate. You may of course refer in your answer to the existing answer for implementation details, but please also include the reason why mod_rewrite is the correct solution.
Mar
10
comment alternative directory for files if not exists
Not a duplicate, that already presumes mod_rewrite is a given, and the question is about its use.
Nov
5
comment What are the advantages of tape drives?
That's another historical thing. It used to be that you couldn't efficiently move HDDs (kilograms per megabyte limitation) and using a network to offsite backup was even more impossible. Today of course neither limitation is relevant. A 10 Gbps umbilical between your datacentres is feasible, and disk capacities are measured in terabytes per kilo.
Nov
5
comment What are the advantages of tape drives?
The reason you don't need an autoloader for HDD media is because it's entirely possible to "load" all of them at the same time. To get data from a disk, it just needs power and a data connection, which requires not a lot more than a few wires. That scales easily. To get data of a tape, you need an entire drive, and it's not feasible to have an entire drive per tape.
May
3
comment How to make google chrome only for internal use?
Sounds like another braindead corporate policy. Pain without a gain.
Mar
29
comment Why does a hardware router perform better than a Linux router with better specs (RAM & CPU)?
It works both ways, too. The hardware doesn't need to deal with rare, complex cases either. It just throws those to software. Routing loops? Don't try to figure out in hardware how to deal with those.
Jan
18
comment Is there any DNS system or Service that is HTTPS aware?
This would also require all DNS clients to cooperate; standard DNS clients do not include the application. Hence, there is no way that the DNS server could respond differently, even if you could modify the DNS server.
Sep
24
comment How it was detected if last ACK lost in TCP connection termination procedure?
@sonali: It's a fundamental issue known as the "Two Generals problem". You cannot detect the loss of the last message, because that would require another "past-the last" message.