Re: Incremental Online Backup

2017-09-17 Thread Shreyans Jain
ving anyway and doing online > backup (SYSCS_UTIL.SYSCS_BACKUP_DATABASE_AND_ENABLE_LOG_ARCHIVE_MODE) > frequently enough (daily) avoiding applying many log files for recovery. > > See https://db.apache.org/derby/docs/10.0/manuals/admin/hubprnt46.html > and documentation on the procedures used in that page. >

Incremental Online Backup

2017-09-16 Thread Shreyans Jain
Is it possible in any way (may be a workaround or hack) to do online incremental backup of anything (logs, data files etc) by which database can be restored using that backup. Regards, Shreyans Jain

Re: Write Cache - Data Corruption

2017-07-16 Thread Shreyans Jain
Why would we need any kind of power backup if every thing is directly written to disk, write cache being off. Only risk would be of losing last transaction data. On Jul 16, 2017 7:58 PM, "Rick Hillegas" <rick.hille...@gmail.com> wrote: > On 7/15/17 10:12 PM, Shreyans Jain wr

Re: Write Cache - Data Corruption

2017-07-15 Thread Shreyans Jain
If we have write cache off, do we need a ups or some other power backup ? On Sat, Jul 15, 2017 at 8:02 PM, Rick Hillegas <rick.hille...@gmail.com> wrote: > On 7/14/17 6:21 PM, Shreyans Jain wrote: > >> If we have a ups and we properly shutdown the OS, will then we have to >

Write Cache - Data Corruption

2017-07-14 Thread Shreyans Jain
If we have a ups and we properly shutdown the OS, will then we have to disable write cache for the hard-disk in order to prevent data corruption. Are there any chances left for the data to be corrupted by power failure with write cache on? Regards, Shreyans Jain

Re: Derby Database Corruption Issues

2017-07-12 Thread Shreyans Jain
rite cache that we can disable via OS on windows 10 from Device Manager > Properties of Disk Drive > Policies tab or it has to be disabled from somewhere in BIOS. Regards, Shreyans Jain On Thu, Jul 13, 2017 at 12:32 AM, Kristian Waagan <krist...@apache.org> wrote: > Hi Shreyans, &g

Derby Database Corruption Issues

2017-07-12 Thread Shreyans Jain
no effect. Regards, Shreyans Jain

Derby Database Corruption Issues

2017-07-12 Thread Shreyans Jain
I was reading https://wiki.apache.org/db-derby/DatabaseCorruption and i found prevention of corruption which states "Switch off the machine's write caching" . now the article is written in 2013. Is it still application to derby database corruption or now it has no effect. Regards, Shreyans Jain