Seeking how to improve
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@scottalanmiller said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I don't see the model, but if that is a high end EMC, it can do HA. It's not cost effective for it most likely, but it can do it. It's not that single point of failures can't do HA, it's that they can't do it optimally.
Sorry, forgot to mention the model. We have an EMC VNXe3200 with 12 HD SAS 10K configured as two RAID 5 and two RAID 10 LUNs.
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@scottalanmiller said in Seeking how to improve:
@manheraz said in Seeking how to improve:
(I have to use the EMC array until it's out of suport - 2020)
That's sunk cost / technical debt. You should run the numbers. It should be an IT decision whether it makes sense to use or not, that there is or isn't support would be an "in the weeds" factor that would lead to the final decision, but is just part of the equation.
Yeah, I discovered we have an IPOD when we already had the array.
When we bought the current hypervisors (2 Dell R530, single E5 CPU, 128 GB RAM, 4 GbE NICs + 2 10 GbE NICs for the SAN) and the array, management told us that the new equipment should last five years at least.
That's the reason we had to use the array until it's out of maintenance.
The array is half empty, so we can add disks if needed, but that is really expensive. It's a lot cheaper going with local storage (and maybe more performant), so that's a reason I can use to change the situation in addition to the risk of having a critical SPOF.
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@coliver said in Seeking how to improve:
@manheraz said in Seeking how to improve:
Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
I'm curious as to what EMC array you have? Some of the lower end models are junk and shouldn't be considered.
It's an EMC VNXe3200, so yeah, low end model
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@scottalanmiller said in Seeking how to improve:
@coliver said in Seeking how to improve:
@manheraz said in Seeking how to improve:
Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
I'm curious as to what EMC array you have? Some of the lower end models are junk and shouldn't be considered.
I'm surprised that it offers SMB3.
Yep, it does. I was a bit surprised too when I discovered it...
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@ramblingbiped said in Seeking how to improve:
Before you take on any new work I would recommend reading "Time Management for System Administrators" by Tom Limoncelli.
https://www.goodreads.com/book/show/376236.Time_Management_for_System_Administrators
Put into practice the principles discussed in the book and start organizing your time.
A favorite quote of mine as of late is: "How you do anything is how you do everything". Don't take on a project or task if you can not afford to give it the time, attention, and resources that it deserves. Failing is okay, but setting yourself up for failure is a waste of time and potential. Always keep a focus on attention to detail and maximize your time and efforts.
Hey! Thank you very much for the recommendation.
Tom Limoncelli has really nice books. I'm a fan of "The practice of system and network administration, 3rd ed".
Some projects are ideas from that book.
Will take a look for sure.
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@manheraz said in Seeking how to improve:
@scottalanmiller said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I don't see the model, but if that is a high end EMC, it can do HA. It's not cost effective for it most likely, but it can do it. It's not that single point of failures can't do HA, it's that they can't do it optimally.
Sorry, forgot to mention the model. We have an EMC VNXe3200 with 12 HD SAS 10K configured as two RAID 5 and two RAID 10 LUNs.
OMG - did you said spinning rust in RAID 5? What is the size of those arrays? Remember, at 12 TB for consumer, and 120 TB at business class drives, these arrays reach a near 100% failure rate due to URE during a resilver.
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@coliver said in Seeking how to improve:
@scottalanmiller said in Seeking how to improve:
@coliver said in Seeking how to improve:
@manheraz said in Seeking how to improve:
Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
I'm curious as to what EMC array you have? Some of the lower end models are junk and shouldn't be considered.
I'm surprised that it offers SMB3.
Pretty much. The VNXe line was big on "Unified Storage" but it blew up in my face one too many times for it to be considered anything but a toy system.
Well, bad news for me...
We had no problems with the array in two years, but we can't afford a total failure of the array at this moment, so time to look for better options.
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@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve:
@scottalanmiller said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I don't see the model, but if that is a high end EMC, it can do HA. It's not cost effective for it most likely, but it can do it. It's not that single point of failures can't do HA, it's that they can't do it optimally.
Sorry, forgot to mention the model. We have an EMC VNXe3200 with 12 HD SAS 10K configured as two RAID 5 and two RAID 10 LUNs.
OMG - did you said spinning rust in RAID 5? What is the size of those arrays? Remember, at 12 TB for consumer, and 120 TB at business class drives, these arrays reach a near 100% failure rate due to URE during a resilver.
Yes, I was really concerned about that. That was not my design, it was configured by a the same company we bought the array. They are certified by EMC, and it was the first time I was looking at their products, so I kept my mouth shut.
Also, the array has 7.2 TB raw.
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@manheraz said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve:
@scottalanmiller said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I don't see the model, but if that is a high end EMC, it can do HA. It's not cost effective for it most likely, but it can do it. It's not that single point of failures can't do HA, it's that they can't do it optimally.
Sorry, forgot to mention the model. We have an EMC VNXe3200 with 12 HD SAS 10K configured as two RAID 5 and two RAID 10 LUNs.
OMG - did you said spinning rust in RAID 5? What is the size of those arrays? Remember, at 12 TB for consumer, and 120 TB at business class drives, these arrays reach a near 100% failure rate due to URE during a resilver.
Yes, I was really concerned about that. That was not my design, it was configured by a the same company we bought the array. They are certified by EMC, and it was the first time I was looking at their products, so I kept my mouth shut.
Also, the array has 7.2 TB raw.
Well, assuming these are EMC enterprise class drives... you're RAID 5 failure risk is probably pretty low, but 5% wouldn't be unexpected - @scottalanmiller do some math for us - what's his failure chance for 7.2 TB on enterprise drives?
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@manheraz said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I have no idea if SMB 3 is worth us My or not... other possibilities ISCSI.
Well, I was going to use this:
SMB3 allows deduplication and compression (not available if using iSCSI, and the array doesn't have enought storage capacity for our needs)
That's from the "EMC VNXe3200 HIGH AVAILABILITY" white paper.
Burn that thing in a fire. Low end crap Dell bundled with their servers to promote fake-HA.
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I don't have ANY experience with virtual SANs, but what about StarWind Virtual SAN Free?
I have four Dell SSD 120 GB (server class) available. Our R530 have eight HDD slots each.
Maybe we can go with 2 x 120 GB SSD for caching and 6 x NL-SAS disks for storage on each server. What do you think?
Sorry, I never used tiered storage or virtual SAN products, just started looking at this.
Also, I have no idea about how many IOPS do we need. We have this storage array because it was the recommended solution by our service provider. I know, very bad move. They want to sell services and equipments.
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@coliver said in Seeking how to improve:
Burn that thing in a fire. Low end crap Dell bundled with their servers to promote fake-HA.
+1000
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@manheraz said in Seeking how to improve:
I don't have ANY experience with virtual SANs, but what about StarWind Virtual SAN Free?
I have four Dell SSD 120 GB (server class) available. Our R530 have eight HDD slots each.
Maybe we can go with 2 x 120 GB SSD for caching and 6 x NL-SAS disks for storage on each server. What do you think?
Sorry, I never used tiered storage or virtual SAN products, just started looking at this.
Also, I have no idea about how many IOPS do we need. We have this storage array because it was the recommended solution by our service provider. I know, very bad move. They want to sell services and equipments.
Starwind makes good software and @KOOLER is here in the community.
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Sign up for DPACK. Install it and get a baseline on what you're current workloads are doing. Run it for a week, the longer the better. For example, you might have a process that only runs once a month, and running for a week could miss that process and it's requirements.
This will help you know what you need to shoot for at a minimum.
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@coliver said in Seeking how to improve:
@manheraz said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I have no idea if SMB 3 is worth us My or not... other possibilities ISCSI.
Well, I was going to use this:
SMB3 allows deduplication and compression (not available if using iSCSI, and the array doesn't have enought storage capacity for our needs)
That's from the "EMC VNXe3200 HIGH AVAILABILITY" white paper.
Burn that thing in a fire. Low end crap Dell bundled with their servers to promote fake-HA.
What about using it as Veeam backup target?
I got the idea from here: https://www.storagecraft.com/blog/making-the-best-of-your-inverted-pyramid-of-doom/
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@manheraz said in Seeking how to improve:
I don't have ANY experience with virtual SANs, but what about StarWind Virtual SAN Free?
I have four Dell SSD 120 GB (server class) available. Our R530 have eight HDD slots each.
Maybe we can go with 2 x 120 GB SSD for caching and 6 x NL-SAS disks for storage on each server. What do you think?
Sorry, I never used tiered storage or virtual SAN products, just started looking at this.
I've never had a chance to see/play with something like this - I have no clue how the teired storage even works.
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@dashrender said in Seeking how to improve:
Sign up for DPACK. Install it and get a baseline on what you're current workloads are doing. Run it for a week, the longer the better. For example, you might have a process that only runs once a month, and running for a week could miss that process and it's requirements.
This will help you know what you need to shoot for at a minimum.
Thank you very much!
Just what I needed.
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@manheraz said in Seeking how to improve:
@coliver said in Seeking how to improve:
@manheraz said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I have no idea if SMB 3 is worth us My or not... other possibilities ISCSI.
Well, I was going to use this:
SMB3 allows deduplication and compression (not available if using iSCSI, and the array doesn't have enought storage capacity for our needs)
That's from the "EMC VNXe3200 HIGH AVAILABILITY" white paper.
Burn that thing in a fire. Low end crap Dell bundled with their servers to promote fake-HA.
What about using it as Veeam backup target?
I got the idea from here: https://www.storagecraft.com/blog/making-the-best-of-your-inverted-pyramid-of-doom/
That could be fine, but I'd probably still want to have another backup besides this - i.e. replicated somewhere else...
Also, when you repurpose it.. RAID 6 that guy for max storage followed by reasonable safety. -
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve:
@coliver said in Seeking how to improve:
@manheraz said in Seeking how to improve:
@dashrender said in Seeking how to improve:
@manheraz said in Seeking how to improve
- Reconfigure the EMC array as a high availability SMB 3 file server and move the Hyper-V virtual machines to the array (I have to use the EMC array until it's out of suport - 2020)
How are you going to do that? Are you buying another SAN? If not, you don’t have HA.
I have no idea if SMB 3 is worth us My or not... other possibilities ISCSI.
Well, I was going to use this:
SMB3 allows deduplication and compression (not available if using iSCSI, and the array doesn't have enought storage capacity for our needs)
That's from the "EMC VNXe3200 HIGH AVAILABILITY" white paper.
Burn that thing in a fire. Low end crap Dell bundled with their servers to promote fake-HA.
What about using it as Veeam backup target?
I got the idea from here: https://www.storagecraft.com/blog/making-the-best-of-your-inverted-pyramid-of-doom/
That could be fine, but I'd probably still want to have another backup besides this - i.e. replicated somewhere else...
Also, when you repurpose it.. RAID 6 that guy for max storage followed by reasonable safety.Yeah. That would be just one backup target.
I was thinking about two backup targets and one replication target in a DR site.
Also, trying to use our old LTO 3 tapes as a last resort backup.
Thanks for the RAID 6 suggestion. Good idea.
