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Does issuing a sync call flush an SSD's write cache?
Is there a way to protect SSD from corruption due to power loss?Rapid SSD vs. RAM in serversHow effective is LSI CacheCade SSD storage tiering?Does fsfreeze flush FS caches?Hardware raid, LVM and KVM cache policyWindows Server 2012 write caching4gb cache RAID and 2gb cache RAID controllers VS SAS and SSD disksWhy does sequential writes have better performance than random writes in SSDsSSD: Raid 5 vs. Raid 1 (SSD lifetime). Is Raid 5 with SSDs really bad?Better performance when HDD write cache is disabled? (HGST Ultrastar 7K6000 and Media Cache behavior)Use a specific disk for database cache on Linux
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Suppose I create a number of directories on SSD, then issue a "sync" call.
The sync call will guarantee that any writes, even if they are stored in the write cache, will be flushed to disk by the time the sync call returns, right?
cache ssd
asked Apr 26 at 3:07
jj172jj172
1063
add a comment |
Suppose I create a number of directories on SSD, then issue a "sync" call.
The sync call will guarantee that any writes, even if they are stored in the write cache, will be flushed to disk by the time the sync call returns, right?
cache ssd
asked Apr 26 at 3:07
jj172jj172
1063
3
Only if the specific hardware is behaving according to the relevant specifications. It is my understanding that a lot of domestic-grade disk drives ignore any instructions to flush their cache. See also this answer.
– Harry Johnston
Apr 26 at 3:35
add a comment |
Suppose I create a number of directories on SSD, then issue a "sync" call.
The sync call will guarantee that any writes, even if they are stored in the write cache, will be flushed to disk by the time the sync call returns, right?
cache ssd
asked Apr 26 at 3:07
jj172jj172
1063
Suppose I create a number of directories on SSD, then issue a "sync" call.
The sync call will guarantee that any writes, even if they are stored in the write cache, will be flushed to disk by the time the sync call returns, right?
cache ssd
cache ssd
asked Apr 26 at 3:07
jj172jj172
1063
asked Apr 26 at 3:07
jj172jj172
1063
asked Apr 26 at 3:07
jj172jj172
1063
asked Apr 26 at 3:07
jj172jj172
1063
asked Apr 26 at 3:07
jj172jj172
1063
1063
3
Only if the specific hardware is behaving according to the relevant specifications. It is my understanding that a lot of domestic-grade disk drives ignore any instructions to flush their cache. See also this answer.
– Harry Johnston
Apr 26 at 3:35
add a comment |
3
Only if the specific hardware is behaving according to the relevant specifications. It is my understanding that a lot of domestic-grade disk drives ignore any instructions to flush their cache. See also this answer.
– Harry Johnston
Apr 26 at 3:35
3
3
Only if the specific hardware is behaving according to the relevant specifications. It is my understanding that a lot of domestic-grade disk drives ignore any instructions to flush their cache. See also this answer.
– Harry Johnston
Apr 26 at 3:35
Only if the specific hardware is behaving according to the relevant specifications. It is my understanding that a lot of domestic-grade disk drives ignore any instructions to flush their cache. See also this answer.
– Harry Johnston
Apr 26 at 3:35
add a comment |
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3
Only if the specific hardware is behaving according to the relevant specifications. It is my understanding that a lot of domestic-grade disk drives ignore any instructions to flush their cache. See also this answer.
– Harry Johnston
Apr 26 at 3:35