Re: Slow XFS write
To complete the description there is infos about the XFS partition:
meta-data=/dev/sda4 isize=256 agcount=11, agsize=268435455 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=2920268544, imaxpct=5
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal bsize=4096 blocks=521728, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
And infos about the RAID5 volume:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-5, Secondary-0, RAID Level Qualifier-3
Size : 10.915 TB
Sector Size : 512
Parity Size : 5.457 TB
State : Optimal
Strip Size : 64 KB
Number Of Drives : 3
Span Depth : 1
Default Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteThrough, ReadAheadNone, Direct, No Write Cache if Bad BBU
Default Access Policy: Read/Write
Current Access Policy: Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
Default Power Savings Policy: Controller Defined
Current Power Savings Policy: None
Can spin up in 1 minute: Yes
LD has drives that support T10 power conditions: No
LD's IO profile supports MAX power savings with cached writes: No
Bad Blocks Exist: No
Is VD Cached: No
Le 22/08/2018 à 11:41, Martin LEUSCH a écrit :
Hi,
I have a NFS server with a hardware RAID5 on 3 HDD of 6 TB. I have a
system partition with ext4 and a data partition with XFS.
I get only 10 MB/s in write speed on the XFS data partition and 80
MB/s on the system partition.
XFS mount option:
/dev/sda4 on /var/srv/nfs type xfs (rw,relatime,attr2,inode64,noquota)
Is there a way to have better performance? Is XFS a good choice in
this situation?
Reply to: