[cs615asa] Query..!!

[Gaurav Sharma]

thanks a lot..!!



On Tue, Feb 4, 2014 at 10:53 PM, Jan Schaumann <jschauma at stevens.edu> wrote:

> Gaurav Sharma <gsharma1 at stevens.edu> wrote:
>
> > First, I was trying to understand what  'zfs snapshot -r' command does in
> > solaris.
>
> Filesystem snapshots are a copy of all the data of the filesystem at
> that point in time, often for the purpose of backups.  We will discuss
> them in more details in lecture 06.
>
> A memory snapshot, often also referred to as a "core dump" (of either a
> process or the kernel) is a full copy of all the contents of the memory
> at the given point in time.  For an individual process, it just contains
> the information and data from that processes's image; for the kernel, it
> contains the information and data from so-called "kernel space".
>
> The core(5) manual page on linux-lab is a good point to read up on; a
> lot of the related information can also often be found in the /proc
> filesystem or using the strace(1)/ktrace(1)/dtrace(1) commands
> (depending on your unix flavor).
>
> -Jan
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