Capacity planning is the science and art of estimating the space, computer hardware, software and connection infrastructure resources that will be needed over some future period of time.

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What are challenges with Linux Storage Servers having 7 or 15 drives? [duplicate]

I'm evaluating options for image webservers for Tralev (in the case it grows). I was looking into Hetzner's storage line. They offer storage servers with 7 and 15 drives. 7 drives with software ...
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3answers
159 views

How many IOPS do I need? My workload bottleneck is storage

How can I know how many IOPS I need my storage to deliver for my overloaded Linux server? I have a server and I know it has storage as its bottleneck. I would like the bottleneck not to be storage, ...
2
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1answer
45 views

MongoDB Sharding Config and MongoS Storage

In doing this year's budgeting, I need to estimate the capacity needs for next year. We are planning on needing to shard our MongoDB Replica Set out to 4-shards, but I have the disk capacity needs ...
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2answers
1k views

vSphere education - What are the downsides of configuring VMs with *too* much RAM?

VMware memory management seems to be a tricky balancing act. With cluster RAM, Resource Pools, VMware's management techniques (TPS, ballooning, host swapping), in-guest RAM utilization, swapping, ...
4
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1answer
255 views

Should VMware HA Admission Control be enabled for small (2/3-host) clusters?

Take the following common scenario... A basic vSphere cluster running two or three hosts, shared storage and a token set of virtual machines under Essentials Plus or greater licensing. Should HA ...
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2answers
50 views

gradual increase in capacity of a virtual hdd

Im very new in using ESXI/vSphere and im planning to create an FTP server and i just needed to know some few basic things. How do i gradually increase the disk capacity in a virtualize environment or ...
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1answer
48 views

Amazon Web Service monitoring

I have deployed a web app on an AWS server. I have following questions: Monitoring my websphere app server status capacity monitoring? uptime thru Amazon CloudWatch metrics? Load balancing ...
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1answer
202 views

Guide to Apache performance monitoring and capacity planning? [closed]

Can someone point me at a guide on performance monitoring and capacity management of an Apache web farm? Other questions suggest some tools, but I'm also interested in understanding what the various ...
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1answer
109 views

sizing memory for virtual ETL server - is paging recommended?

I am working on the sizing for a virtual server to be used for Business Intelligence ETL processing. We have an existing server from which I can observe the expected trend on the planned one - almost ...
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1answer
240 views

HPC Cluster planning workflow? [closed]

After three days of intensive Google searching, I have not found any high-level workflow of how to build a low profile - cheap - computing cluster (we are not interested in HA yet). This is just a ...
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1answer
142 views

VPS users capacity [duplicate]

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites I was wondering if there is a way to actually determine how many users my VPS can handle until it will run ...
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1answer
154 views

Calculating HA/LB MySql server requirements

First, I hope this fits here better than it fits at stackoverflow, I was torn on which site to put it on. Stack focuses more on programming. Mods, if this is the incorrect location please relocate. ...
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MongoDB and datasets that don't fit in RAM no matter how hard you shove

This is very system dependent, but chances are near certain we'll scale past some arbitrary cliff and get into Real Trouble. I'm curious what kind of rules-of-thumb exist for a good RAM to Disk-space ...
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1answer
198 views

Sizing Switches for Storage and Production

Couple questions. Should you always completely separate the storage network switches from production switches or are VLANs fine to segment this traffic? Is there a golden rule here? How do you ...
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2answers
5k views

Can you help me with my capacity planning?

This is a Canonical Question about Capacity Planning Related: How do you do Load Testing and Capacity Planning for Web Sites? How do you do Load Testing and Capacity Planning for ...
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1answer
825 views

How much server memory do I need for a 2TB Database SQL Server? [closed]

We have calculated the initial database size for this implementation to be 2TB, rising by 1TB per year. How much memory would you recommend for the server? Its a business application, reads and ...
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3answers
263 views

Server requirement for running an application having huge network traffic

What I am asking is a very common question that comes to any developer's mind when he/she wants to host a server but a precise answer is not easily available. I need to host a server which returns ...
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3answers
1k views

Open source DCIM stack?

Our 500-server data center is growing quickly and my manager has started investigating using a specialized Data Center Infrastructure Management (DCIM) package to help manage constraints. DCIM ...
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1answer
2k views

How do you do load testing and capacity planning for databases?

This is a canonical question about capacity planning for databases. Related: Can you help me with my capacity planning? How do you do Load Testing and Capacity Planning for Web ...
45
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3answers
6k views

How do you do load testing and capacity planning for web sites?

This is a canonical question about capacity planning for web sites. Related: Can you help me with my capacity planning? How do you do Load Testing and Capacity Planning for ...
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3answers
3k views

When using thin-provisioning with ZFS, how do you make sure you don't run out of physical disk space?

Forgive me if this seems like a fundamental question, but I couldn't really find anything concrete on Google, and I'm not a system administrator by trade. We are setting up a SAN at our office using ...
4
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1answer
106 views

Planning for growth in a virtualized environment

In follow-up to an old question (and somewhat related to this), what trending tools/methods can be best utilized to help anticipate growth in a virtualized environment? For example, how do you go ...
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2answers
249 views

Automatic VM capacity planning

Situation: I've got a bunch of blades, all with same amount of memory and cores in each. Some have local storage, some do not and rely on the SAN. I've also got a ton of VMs that I need to build ...
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1answer
162 views

What percentage of its capacity should I aim to run a network at?

First of all, apologies if this is the wrong StackExchange site for this question - it's about Ethernet network capacities, but not specifically about servers etc. I am designing a network for a data ...
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2answers
315 views

How Amazon S3 provides unlimited storage space? [closed]

In order to maintain user uploaded images in website becomes very tough as the number of images are increasing. In the long run the available disk space will come to 0 bytes. Amazon generally ...
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4answers
2k views

How many websites can my server potentially hold? [closed]

Sorry for the "noob" question, but... About how many medium-sized websites with average traffic could this server hold? Just like the average website, kind of like a small business site. How many ...
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1answer
678 views

How many instances of rails can I run on one server?

I'm a developer trying to determine the best way to approach a rails app. I need to provide some options for deployment and am trying to minimize both development costs and long term hosting costs. ...
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2answers
377 views

Aids for capacity planning? [closed]

Are there any resources (Templates, tools, etc) that a sys admin would use to perform a capacity planning study? I am going to setup some servers on the cloud but I need to know how many I will need ...
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6answers
2k views

Planning my first server with Ubuntu KVM Virtual Machines

I am putting together a dual-xeon quad core (i.e., 8 cores total) 12GB RAM linux server to replace several old smaller servers. I would like to use virtualization both to learn about it and because ...
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3answers
164 views

Criteria for VM deployment

What technical criteria do people use when ascertaining an applications suitability for virtualisation? I know things have moved on a bit since a few years ago so I would like peoples experiences and ...
2
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1answer
494 views

What fiber should I run between 2 floors in a company site?

I'm helping a customer in moving his company to a new building. There we'll have two racks on two different floors to accomodate various servers and switch infrastructure. We'all also use the ...
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1answer
116 views

Windows 2008 web app server -hardware planning help

I am setting up a website on win2008/sql2008 (64 bit) on a dedicated server, which may get 50K to 100K users/visitors. Concurrent users at any time may be 1000 (max). Users will log in 4 to 6 times a ...
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2answers
805 views

Is it possible create a 4TB bootable partition in the x86 edition of Windows Server 2003 Enterprise?

I'd like to find out if there is any way to accomplish this, since it would benifit my storage server greatly. I am using a Promise FastTrak 8660 and five Seagate ST31000340NS 1TB drives in a RAID 5 ...
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9answers
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Maximum number of files in one ext3 directory while still getting acceptable performance?

I have an application writing to an ext3 directory which over time has grown to roughly three million files. Needless to say, reading the file listing of this directory is unbearably slow. I don't ...
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1answer
345 views

Throughput; capacity planning help for C10K like design [duplicate]

I am designing a network service in which clients connect and stay connected -- the model is not far off from IRC less the s2s connections. I could use some help understanding how to do capacity ...
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1answer
122 views

Is an IIS-Spawned Process CPU-Limited?

Seems more appropriate here than at StackOverflow; we'll see if it gets closed. Let's say I have an IIS App Pool set to cap at 25%. But the pool runs a webservice which spawns a process. Is that ...
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3answers
135 views

http reqest and response route(s)

Hope in the right place.. So I've loadbalancer(LB) and two Apaches(A1 & A2) underneath. All of them have public IPs. Now my question is; Client requests a website -> request goes to LB -> requets ...
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1answer
1k views

Bandwidth planning for TCP/IP and Ethernet overhead

During typical capacity planning processes i see a perhaps simplistic consideration for estimating only the page or data sizes that are expected to pass through the network pipes. That means like in ...
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1answer
313 views

How can I measure the load capacity of my video encoding server and plan for scaling?

I have a server running on Amazon EC2 that acts as a video encoder (LAMP CentOS + FFMPEG). How can I load test it with video files and get an idea of how many encodings it can handle. I can't seem to ...
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6answers
950 views

Accurately trending random I/O performance for capacity planning

Where I work we have a numerous "big iron" servers which are used used for hosting many virtual machines using a Xen Hypervisor. These are typically configured with 32GB RAM, Dual Quad core processes ...
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2answers
1k views

hardware sizing vs capacity planning

Folks, Is hardware sizing and capacity planning same? I have seen these terms being used together and google does not return any results that help me understand the difference. Would appreciate any ...
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1answer
966 views

Complete infrastructure capacity planning exercise [duplicate]

Despite my colleague and myself being application developers by nature, our current contract engagement has placed us into the infrastructure operations branch of our customer. While we are still ...
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5answers
4k views

Server Room Physical Size and Layout

I’ve read the “perfect server room” answers and a few other similar questions' answers, but I didn’t see any really good answers on how much physical space is the right amount. Do you keep your racks ...
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3answers
357 views

Need some input for ideal server setup [duplicate]

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites First off.. HUGE kudos the the creator of this site as well as the others in this series. As a ...
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6answers
259 views

Is mixing IT infrastructure and development VMs into the same physical machine a bad idea?

As a system designer, would you put VMs responsible for core infrastructure (dns/dhcp/directory/web/wiki/repos/file share etc) and VMs used for development and testing on the same physical machine? ...
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5answers
2k views

When is the right time to add a separate database server, add more web servers?

Usually web projects start small, everything is on the one server. But if site becomes popular one server won't be enough. So, since I don't have any experience in this, I'd like to get an idea of: 1. ...
5
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1answer
1k views

Load-testing tools for Active Directory?

Are there any tools out there that can torture-test and measure AD performance? We're looking at a fairly major expansion of our environment (think tens of thousands of computers) that will throw lots ...
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7answers
770 views

When to Add another server(s)

When is the right time to start adding(or thinking about adding) servers to your Web Application? What are the difficulties involved in going from a single server(DB and Web) to multiple? For ...