Very small size of a Storage Pool consisting of SSDs disks only (31,5 GB of 745GB of each SSD disk is reserved)

-

hi,

have problem capacity of ssd disks used in storage pool. have 4 nodes windows server 2016 tp4 in failover cluster - each of them has 4 physical ssd disks:

ps> get-physicaldisk -canpool $true |? mediatype -eq ssd  friendlyname               size ------------               ---- ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb ata intel ssdsc2bb80  745.21 gb

the problem when create storage pool, 31,5 gb of each ssd disk used (31,5 * 16 = 504gb):

$physicaldisks = get-storagesubsystem -friendlyname '*storage_cluster*' | get-physicaldisk -canpool $true |? mediatype -eq ssd $storagepool = new-storagepool -friendlyname company_data -storagesubsystemfriendlyname '*storage_cluster*' -physicaldisks $physicaldisks -provisioningtypedefault fixed -resiliencysettingnamedefault mirror -enclosureawaredefault $true $poolsizegb = $storagepool.size / 1024 / 1024 / 1024 write-host "pool size: " $storagepool.size " = " $poolsizegb "gb" pool size:  541165879296  =  504 gb

adequately:

ps> get-physicaldisk |? mediatype -eq ssd  friendlyname              size ------------              ---- ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb ata intel ssdsc2bb80   31.5 gb

anyone has suggestions? note i've done same hdd disks (each host had 4 hdd 1tb disks) , size of newly created storage pool set ~15tb. 

thanks!


thank answers. haven't set either quota or tiers - did steps pasted in code blocks.

i managed find right answer - looks storage spaces direct ssd disks automatically set caching devices - leaving ~32gb of usable storage space on each disk. because of new 'software storage bus cache' feature:

https://blogs.technet.microsoft.com/clausjor/2015/11/19/storage-spaces-direct-under-the-hood-with-the-software-storage-bus/ 

sbc creates special partition on each caching device that, default, consumes available capacity except 32gb. 32gb used storage pool , virtual disk metadata.

regards,

mateusz



Windows Server  >  Windows Server Technical Preview



Comments

Post a Comment

Popular posts from this blog

Edit Group Policy

-
i have pc has power settings pushed out default domain policy in ad environment. of course on local machine "some settings managed system adminstrator". the machine temporarily no longer in contact domain controller (it's been physically moved , not on same network now) can't updated gpo settings. i believe if edit local group policy won't make difference because of group policy processing , precedence. since it's temporary away ad network, still want use settings of ad user. is there somewhere in registry stored can edit power plan manually until can sync domain? (i need prevent sleeping while plugged in - it's set 1 hour) thanks! allen crist i found site: http://gpsearch.azurewebsites.net/#7916 i able add policy to hkey_local_machine\software\policies\microsoft\power using specs found on site. looks solved issue. i'll report if didn't. thanks! allen crist ...
Read more

Hyper-V VM not reaching OS 'Logon' screen

-
i trying migrate vm vmware hyper-v. so far have done following (seemingly successfully): prepare vmware vm conversion hyper-v format (vhd) within vmware workstation 8.0 environment following steps guide: http://social.technet.microsoft.com/forums/en/winserverhyperv/thread/ef8c12f7-c45d-442e-9a30-c43cd87df3b3   (i.e. remove vm tools, add new ide hard disk…) use vmdk2vhd application convert individual vmdk files vhd ones create new vm in hyper-v exporting in 3 newly converted vhd files at point have checked settings , powered on vm in hyper-v find although windows begins load expected manages reach screen prior login screen saying either of following messages: “windows starting up…” “the active directory rebuilding indices… please wait” to knowledge, albeit limited in area, vm should present me login screen since appears in vmware. if start vm in safe mode can login not desired affect. below details of vm: operating system: windows server 2003 (enterprise edit...
Read more

DNS question...

-
i new setting dns server....my domain name expl. "domain.com"....i set "a" record in forward lookup for  www.domain.com itself...."server's local ip"....i've added no other zones , i seem able resolve names except own....www.domain.com.....also, do i put my isp's dns ip's....for external dns's server can't resolve?....forwarding or in nic setup?......i want setup in my dns server don't have include them on client side..... thanks mark     not put isp dsn server address in settings on nic dc or clients. should point local dns server on dc. set dns forward public dns, such isp. bill Windows Server  >  Network Infrastructure Servers
Read more