Should I use a CoW filesystem on my PC if I only wanted snapshot capabilities ? Post: 303044634

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Unix Capabilities?

We are looking into buying a new software, billing software that is, and want to know if you can run that on the same UNIX server as another major software? Is there a limit to the different types of software Unix can run, or is it like windows where you can install as many as you like? ...

2. UNIX for Advanced & Expert Users

p570 Capabilities

Hi there. I've been tasked with making a new design for our Unix systems :eek: Now the question I have is; How many LPARs can a p570 hold WITHOUT using a VIO Server. Many Thanks Kees

3. Red Hat

Adding capabilities to an RPM

Hi. I downloaded a package that could only be installed on RHEL5, and not 4 or 3, so I got the source in order to compile it on RHEL 3 so hopefully it will work on all versions. So I have the source for a working package, but when I build it in RHEL 3 and then try to install it in RHEL 5, it...

4. Filesystems, Disks and Memory

Wanted: Geographically distributed filesystem solution

I'm looking for a means to ensure that servers in the two or three datacenters, connected in a ring via IP through two ISPs, can distribute load and/or replicate data among at least two SAN-class disk devices. I want to evaluate several solutions, and I'm open to solutions ranging from free,...

5. Solaris

Cannot use filesystem while sending a snapshot

I've got a Solaris 11 Express installed on my machine. I have created a raidz2 zpool named shares and a simple one-disc zpool named backup. I have made a script that would send a daily snapshot of shares to backup. I use these commands zfs snapshot shares@DDMMRRRRHHMM zfs send -i shares@.......

6. UNIX for Advanced & Expert Users

Use of Capabilities

I wonder if anyone could assist with some problems I'm having with Linux Capabilities and their use when using the commands "nice" and "schedtool". I run a couple of PCs, one is an elderly AMD Sempron 2800+ (32-bit, 2GHz clock and 3GB memory) that is used as a family multimedia system running...

7. Linux

Broadcom under Fedora 18 (Spherical Cow)

So I'm having a problem getting a Broadcom BCM4312 wireless controller to work under the broadcom-wl module $uname Linux 3.8.11-200.fc18.x86_64 #1 SMP Wed May 1 19:44:27 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux lspci -v 05:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g...

8. UNIX for Advanced & Expert Users

Linux capabilities discussion

Hi I'm trying to compile my linux kernel with CONFIG_SECURITY_CAPABILITIES=y. any idea what this thing does ?? Also another question , If I compile the kernel that I'm currently using , what'll happen ? ~cheers

9. What is on Your Mind?

Anybody want to talk about Dirty Cow?

Hi All, How worried is everyone about the Dirty Cow Linux exploit? Has anybody experienced attacks yet? From the research I've done it seems that the exploit is "reliable" (that is it works nearly every time on vulverable systems) which is not good news. We all believe that Unix/Linux...

LEARN ABOUT OPENSOLARIS

acl_check

acl_check(3SEC) 				       File Access Control Library Functions					   acl_check(3SEC)

NAME

       acl_check - check the validity of an ACL

SYNOPSIS

       cc [ flag... ] file... -lsec [ library... ]
       #include <sys/acl.h>

       int acl_check(acl_t *aclp, int isdir);

DESCRIPTION

       The  acl_check()  function  checks the validity of an ACL pointed to by aclp. The isdir argument checks the validity of an ACL that will be
       applied to a directory. The ACL can be either a POSIX draft ACL as supported by UFS or NFSv4 ACL as supported by ZFS or NFSV4.

       When the function verifies a POSIX draft ACL, the rules followed are described in aclcheck(3SEC).  For  NFSv4  ACL,  the  ACL  is  verified
       against the following rules:

	   o	  The inheritance flags are valid.

	   o	  The ACL must have at least one ACL entry and no more than {MAX_ACL_ENTRIES}.

	   o	  The permission field contains only supported permissions.

	   o	  The entry type is valid.

	   o	  The flag fields contain only valid flags as supported by NFSv4/ZFS.

       If any of the above rules are violated, the function fails with errno set to EINVAL.

RETURN VALUES

       If the ACL is valid, acl_check() returns 0. Otherwise errno is set to EINVAL and the return value is set to one of the following:

       EACL_INHERIT_ERROR     There are invalid inheritance flags specified.

       EACL_FLAGS_ERROR       There are invalid flags specified on the ACL that don't map to supported flags in NFSV4/ZFS ACL model.

       EACL_ENTRY_ERROR       The ACL contains an unknown value in the type field.

       EACL_MEM_ERROR	      The system cannot allocate any memory.

       EACL_INHERIT_NOTDIR    Inheritance flags are only allowed for ACLs on directories.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       acl(2), aclcheck(3SEC), aclsort(3SEC), acl(5), attributes(5)

SunOS 5.11							    22 Apr 2008 						   acl_check(3SEC)