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Special Forums Hardware Filesystems, Disks and Memory Linux Storage system: looking for advices Post 302385283 by pludi on Thursday 7th of January 2010 04:56:45 PM
Old 01-07-2010
Quote:
Originally Posted by Loic Domaigne
[...]
As expected, only the files from the failed partition were missing after the restore operation.[...]
Which is, usually, something you do not want to happen. Personally, I'd rather have a system that's a bit slower if a disk goes bad, but keeps on working, than losing files and not being able to use the system until I've got a replacement disk. But that might just be me.
Quote:
Originally Posted by Loic Domaigne
[...]
However, I failed to restore the file system if /dev/vda6 gets damaged. I used an alternate superblock for fsck (one located on vdb2 or vdb3), but no avail.[...]
That might be because of the striping done by LVM. The volume manager doesn't fill up the first disk, then the second, and so on, but first fills the first stripe (by default 4 MB) on the first disk, the first stripe on the second disk, and so on. With that scheme it might very well be that all superblocks end up on the same disk.
 
ost::Time(3)						     Library Functions Manual						      ost::Time(3)

NAME
ost::Time - The Time class uses a integer representation of the current time. SYNOPSIS
#include <numbers.h> Inherited by ost::Datetime. Public Member Functions Time (time_t tm) Time (tm *dt) Time (char *str, size_t size=0) Time (int hour, int minute, int second) Time () virtual ~Time () long getValue (void) const int getHour (void) const int getMinute (void) const int getSecond (void) const char * getTime (char *buffer) const time_t getTime (void) const tm * getTime (tm *buf) const void setTime (char *str, size_t size=0) bool isValid (void) const operator long () String operator() () const Time & operator++ () Time & operator-- () Time & operator+= (const int val) Time & operator-= (const int val) int operator== (const Time &time) int operator!= (const Time &time) int operator< (const Time &time) int operator<= (const Time &time) int operator> (const Time &time) int operator>= (const Time &time) bool operator! () const Protected Member Functions void toSeconds (int hour, int minute, int second) void fromSeconds (char *buf) const virtual void update (void) Protected Attributes long seconds Friends Time operator+ (const Time &time1, const Time &time2) Time operator- (const Time &time1, const Time &time2) Time operator+ (const Time &time, const int val) Time operator- (const Time &time, const int val) Time operator+ (const int val, const Time &time) Time operator- (const int val, const Time &time) Detailed Description The Time class uses a integer representation of the current time. This is then manipulated in several forms and may be exported as needed. Author: Marcelo Dalmas mad@brasmap.com.br Integer based time class. Constructor &; Destructor Documentation ost::Time::Time (time_ttm) ost::Time::Time (tm *dt) ost::Time::Time (char *str, size_tsize = 0) ost::Time::Time (inthour, intminute, intsecond) ost::Time::Time () virtual ost::Time::~Time () [virtual] Member Function Documentation void ost::Time::fromSeconds (char *buf) const [protected] int ost::Time::getHour (void) const int ost::Time::getMinute (void) const int ost::Time::getSecond (void) const char* ost::Time::getTime (char *buffer) const time_t ost::Time::getTime (void) const tm* ost::Time::getTime (tm *buf) const long ost::Time::getValue (void) const bool ost::Time::isValid (void) const Reimplemented in ost::Datetime. ost::Time::operator long () [inline] bool ost::Time::operator! (void) const [inline] Reimplemented in ost::Datetime. int ost::Time::operator!= (const Time &time) String ost::Time::operator() () const Time& ost::Time::operator++ () Time& ost::Time::operator+= (const intval) Time& ost::Time::operator-- () Time& ost::Time::operator-= (const intval) int ost::Time::operator< (const Time &time) int ost::Time::operator<= (const Time &time) int ost::Time::operator== (const Time &time) int ost::Time::operator> (const Time &time) int ost::Time::operator>= (const Time &time) void ost::Time::setTime (char *str, size_tsize = 0) void ost::Time::toSeconds (inthour, intminute, intsecond) [protected] virtual void ost::Time::update (void) [protected], [virtual] Friends And Related Function Documentation Time operator+ (const Time &time1, const Time &time2) [friend] Time operator+ (const Time &time, const intval) [friend] Time operator+ (const intval, const Time &time) [friend] Time operator- (const Time &time1, const Time &time2) [friend] Time operator- (const Time &time, const intval) [friend] Time operator- (const intval, const Time &time) [friend] Member Data Documentation long ost::Time::seconds [protected] Author Generated automatically by Doxygen for GNU CommonC++ from the source code. GNU CommonC++ Sat Jun 23 2012 ost::Time(3)
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