It may be safe to turn off this parameter if you have hardware (such as a battery-backed disk controller) 307 Chapter 17. Server Configuration or file-system software that reduces the risk of partial adjust how this is done.) Next, there may be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are passed be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backed caches, meaning the card has

adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are sent be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backup units (BBUs), meaning the card write-back, and the same concerns about data loss exist for write-back drive caches as for disk controller caches. Consumer- grade IDE and SATA drives are particularly likely to have write-back caches that

adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are passed be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backed caches, meaning the card has write-back, and the same concerns about data loss exist for write-back drive caches as exist for disk controller caches. Consumer-grade IDE and SATA drives are particularly likely to have write-back caches that

It might be safe to turn off this parameter if you have hardware (such as a battery- backed disk controller) or file-system software that reduces the risk of partial page writes to an acceptably low level wal_sync_method parameter to adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID con- troller cards. Some of these caches are write-through be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backed caches, meaning the card has

It might be safe to turn off this parameter if you have hardware (such as a battery- backed disk controller) or file-system software that reduces the risk of partial page writes to an acceptably low level wal_sync_method parameter to adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID con- troller cards. Some of these caches are write-through be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backed caches, meaning the card has

adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are passed be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backed caches, meaning the card has write-back, and the same concerns about data loss exist for write-back drive caches as exist for disk controller caches. Consumer-grade IDE and SATA drives are particularly likely to have write-back caches that

wal_sync_method parameter to adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID con- troller cards. Some of these caches are write-through be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backup units (BBUs), meaning the card write-back, and the same concerns about data loss exist for write-back drive caches as for disk controller caches. Consumer-grade IDE and SATA drives are particularly likely to have write-back caches that

adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are sent be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backup units (BBUs), meaning the card write-back, and the same concerns about data loss exist for write-back drive caches as for disk controller caches. Consumer- grade IDE and SATA drives are particularly likely to have write-back caches that

adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are sent be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backup units (BBUs), meaning the card write-back, and the same concerns about data loss exist for write-back drive caches as for disk controller caches. Consumer- grade IDE and SATA drives are particularly likely to have write-back caches that

adjust how this is done.) Next, there might be a cache in the disk drive controller; this is particularly common on RAID controller cards. Some of these caches are write-through, meaning writes are sent be a reliability hazard because the memory in the disk controller cache is volatile, and will lose its contents in a power failure. Better controller cards have battery-backup units (BBUs), meaning the card write-back, and the same concerns about data loss exist for write-back drive caches as for disk controller caches. Consumer- grade IDE and SATA drives are particularly likely to have write-back caches that