Solved Window server standard edition on Hyper V- means two Wins VMs ?
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@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Pete-S said in Window server standard edition on Hyper V- means two Wins VMs ?:
Even back in the days I bet those "up to 20%" was a theoretical number when you had one 2.5" drive and no raid controller with cache. Which is basically never happens.
Well as essentially no RAID controllers accept SATA drives, it's decently common even there. But it would be interesting to see on MD or ZFS what kind of numbers are seen. But those stats were from VMware, so presumably tested in RAID.
really? My old VM host is all SATA drives on a RAID controller - RAID 10.
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Pete-S said in Window server standard edition on Hyper V- means two Wins VMs ?:
Even back in the days I bet those "up to 20%" was a theoretical number when you had one 2.5" drive and no raid controller with cache. Which is basically never happens.
Well as essentially no RAID controllers accept SATA drives, it's decently common even there. But it would be interesting to see on MD or ZFS what kind of numbers are seen. But those stats were from VMware, so presumably tested in RAID.
really? My old VM host is all SATA drives on a RAID controller - RAID 10.
Yeah I've got an old R710 with a card that accepts SATA.
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@Pete-S said in Window server standard edition on Hyper V- means two Wins VMs ?:
How could VMware do their test on RAID comparing SATA and SAS command queing performance when there are no RAID cards that accepts SATA?
Interposers?
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@Pete-S I haven't come across a raid card that didn't work with sata drives.
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Aren't NL drives SATA drives with an enterprise connector? a SAS connector?
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Aren't NL drives SATA drives with an enterprise connector? a SAS connector?
What was called nearline (NL) was usually the 3.5" drives with large capacity while the 2.5" drives where the ones with only SAS. But SSDs has killed the 2.5" 10K/15K drives so the only mechanical drives that makes sense are the high capacity (nearline) ones.
If you with "SATA drive" mean cheap consumer drive then the answer is no. Enterprise drives for capacity has always had low rate of bit error, high MTBF and long warranty and consumer drives never had that.
And the cloud has changed the market. Large drives are nowadays called hyperscale, datacenter, high capacity and similar. Some of those applications often don't use RAID and don't need dual port SAS so looking at both WD and Seagate, you'll see that almost all of their enterprise models are available in both SAS and SATA. Price is about the same so you pick what's suitable for your application.
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@Pete-S said in Window server standard edition on Hyper V- means two Wins VMs ?:
And the cloud has changed the market.
MaybeNot
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@Obsolesce said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Pete-S said in Window server standard edition on Hyper V- means two Wins VMs ?:
And the cloud has changed the market.
MaybeNot
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@Pete-S said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Aren't NL drives SATA drives with an enterprise connector? a SAS connector?
What was called nearline (NL) was usually the 3.5" drives with large capacity while the 2.5" drives where the ones with only SAS. But SSDs has killed the 2.5" 10K/15K drives so the only mechanical drives that makes sense are the high capacity (nearline) ones.
If you with "SATA drive" mean cheap consumer drive then the answer is no. Enterprise drives for capacity has always had low rate of bit error, high MTBF and long warranty and consumer drives never had that.
And the cloud has changed the market. Large drives are nowadays called hyperscale, datacenter, high capacity and similar. Some of those applications often don't use RAID and don't need dual port SAS so looking at both WD and Seagate, you'll see that almost all of their enterprise models are available in both SAS and SATA. Price is about the same so you pick what's suitable for your application.
Well, my server is old 8+ years, but it has NL-SATA in 2.5 in form factor.
ST9500530NS Seagate Constellation ST9500530NS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 2.5" Internal Enterprise-class Hard Drive Bare Drive -
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@openit said in Window server standard edition on Hyper V- means two Wins VMs ?:
I don't want to go with Hyper-V as base
That why use Hyper-V at all? What's driving you to all that complexity and licensing headaches if it doesn't meet your needs?
There no licensing complexity - there is an assurance to NOT put anything on the host OS.
There is ALWAYS licensing complexity.
First: That you have to manage which instances can and can't have anything installed.
Second: That you have to maintain the version of the underlying hypervisor to match the licensing of the VMs on top.This is a level of licensing complexity that screws shops constantly. It's enough for many IT shops to fall down on it. It means the obvious "keep things up to date" mentality breaks and you have to track licenses for something that shouldn't need a license.
That's not just complexity, it's problematic complexity that, in the real world, we see screwing companies constantly.
What? Are you saying you can't run higher VM's on the old hypervisor? i.e. downgrade rights?
I'm saying that you end up with a licensed, rather than free, copy of Hyper-V that you either have to pay to upgrade, or not upgrade. It's enough license complexity that you aren't even realizing all of the implications. That we have to dig in and explain just how complex it is, is just how complex it is!
So when a great new hypervisor release comes out, most any platform you'd be expected to update. But with Hyper-V deployed as a role, you have to license it and update that license. It's not free.
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Aren't NL drives SATA drives with an enterprise connector? a SAS connector?
Did you just ask if SAS drives are SATA drives? Think about that statement.
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Well, my server is old 8+ years, but it has NL-SATA in 2.5 in form factor.
NL-SAS is just a marketing term for 7200RPM SAS. SAS is still SAS.
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@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@openit said in Window server standard edition on Hyper V- means two Wins VMs ?:
I don't want to go with Hyper-V as base
That why use Hyper-V at all? What's driving you to all that complexity and licensing headaches if it doesn't meet your needs?
There no licensing complexity - there is an assurance to NOT put anything on the host OS.
There is ALWAYS licensing complexity.
First: That you have to manage which instances can and can't have anything installed.
Second: That you have to maintain the version of the underlying hypervisor to match the licensing of the VMs on top.This is a level of licensing complexity that screws shops constantly. It's enough for many IT shops to fall down on it. It means the obvious "keep things up to date" mentality breaks and you have to track licenses for something that shouldn't need a license.
That's not just complexity, it's problematic complexity that, in the real world, we see screwing companies constantly.
What? Are you saying you can't run higher VM's on the old hypervisor? i.e. downgrade rights?
I'm saying that you end up with a licensed, rather than free, copy of Hyper-V that you either have to pay to upgrade, or not upgrade. It's enough license complexity that you aren't even realizing all of the implications. That we have to dig in and explain just how complex it is, is just how complex it is!
So when a great new hypervisor release comes out, most any platform you'd be expected to update. But with Hyper-V deployed as a role, you have to license it and update that license. It's not free.
aww, yeah.. OK I get that.
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@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Well, my server is old 8+ years, but it has NL-SATA in 2.5 in form factor.
NL-SAS is just a marketing term for 7200RPM SAS. SAS is still SAS.
According to the specs, my drives are SATA drives, not SAS. See the above post.
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
According to the specs, my drives are SATA drives, not SAS. See the above post.
What? There is one and ONLY one spec that determines that a drive is SATA or SAS, and that is if it speaks SATA or SAS. Your's one spec that is relevant is that it is speaking SATA. So it is SATA by absolutely every spec possible.
NL isn't part of any spec.
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
but it has NL-SATA in 2.5 in form factor.
NL-SATA isn't a thing. There is SATA and NL-SAS.
SATA is a protocol. SAS is a protocol. NL-SAS is a marketing term for a drive that is SAS and has low end specs otherwise.
If it has NL-SATA written on it, it's not even a marketing term. It's nothing.
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SAS and SATA are like English and French. Either you speak English or you speak French. That you wear a coat or a tie isn't a factor in the question of "what language do you speak."
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Well, my server is old 8+ years, but it has NL-SATA in 2.5 in form factor.
ST9500530NS Seagate Constellation ST9500530NS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 2.5" Internal Enterprise-class Hard Drive Bare DriveThe term "NL-SATA" never appears in that drive information: https://www.seagate.com/staticfiles/support/docs/manual/enterprise/Constellation 2_5 in/100538694d.pdf
It's a SATA drive, that's all. I can only assume that the "NL" is something that you added somewhere by accident?
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@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Well, my server is old 8+ years, but it has NL-SATA in 2.5 in form factor.
ST9500530NS Seagate Constellation ST9500530NS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 2.5" Internal Enterprise-class Hard Drive Bare DriveThe term "NL-SATA" never appears in that drive information: https://www.seagate.com/staticfiles/support/docs/manual/enterprise/Constellation 2_5 in/100538694d.pdf
It's a SATA drive, that's all. I can only assume that the "NL" is something that you added somewhere by accident?
You're right, it doesn't appear that - It did appear in the IBM documentation when I bought it, which has all been sold to Lenovo no.. but meh.
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@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
@scottalanmiller said in Window server standard edition on Hyper V- means two Wins VMs ?:
@Dashrender said in Window server standard edition on Hyper V- means two Wins VMs ?:
Well, my server is old 8+ years, but it has NL-SATA in 2.5 in form factor.
ST9500530NS Seagate Constellation ST9500530NS 500GB 7200 RPM 32MB Cache SATA 3.0Gb/s 2.5" Internal Enterprise-class Hard Drive Bare DriveThe term "NL-SATA" never appears in that drive information: https://www.seagate.com/staticfiles/support/docs/manual/enterprise/Constellation 2_5 in/100538694d.pdf
It's a SATA drive, that's all. I can only assume that the "NL" is something that you added somewhere by accident?
You're right, it doesn't appear that - It did appear in the IBM documentation when I bought it, which has all been sold to Lenovo no.. but meh.
If you search online, it's really clear it's just a typo that a couple vendors made in casual pages here and there. Easy to do when you have NL-SAS and SATA crossover models, but it's just a typo. It's not a thing and wouldn't mean anything.
